Quick view Details NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS MSRP: Now: $63.95 Add to Cart Compare Quick view Details NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS MSRP: Now: $63.95 Add to Cart Compare Quick view Details NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS MSRP: Now: $63.95 Add to Cart Compare Quick view Details POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS MSRP: Now: $62.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER MSRP: Now: $38.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES MSRP: Now: $32.95 Add to Cart Compare Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS MSRP: Now: $63.95 Add to Cart Compare Quick view Details NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS MSRP: Now: $63.95 Add to Cart Compare Quick view Details POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS MSRP: Now: $62.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER MSRP: Now: $38.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES MSRP: Now: $32.95 Add to Cart Compare Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS MSRP: Now: $63.95 Add to Cart Compare Quick view Details POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS MSRP: Now: $62.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER MSRP: Now: $38.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES MSRP: Now: $32.95 Add to Cart Compare Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS MSRP: Now: $62.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER MSRP: Now: $38.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES MSRP: Now: $32.95 Add to Cart Compare Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER MSRP: Now: $38.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES MSRP: Now: $32.95 Add to Cart Compare Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES MSRP: Now: $32.95 Add to Cart Compare Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS MSRP: Now: $27.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH MSRP: Now: $39.95 Add to Cart Compare SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
SALE Quick view Details SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare
Quick view Details NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS MSRP: Now: $15.95 Choose Options Compare Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT MSRP: Now: $389.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view Details SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET MSRP: Now: $129.95 Add to Cart Compare Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view NCY | sku: 1200-1270 NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (18*46) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES IS FINALLY HERE! THIS KIT IS MADE... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view NCY | sku: 1200-1271 NCY PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY HIGH PERFORMANCE GEAR SET (17*41) FOR CHINESE SCOOTERS WITH 50CC QMB139 MOTORS NUMBER OF SPLINES: 19 INNER DIAMETER (SPLINES PEAK TO PEAK): 18MM THICKNESS: 15.5MM RATIO 2.41NCY QMB139 UPGEAR KIT FOR YOUR 50CC 4-STROKES... MSRP: Now: $63.95 Add to Cart Compare Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view NCY | sku: 1200-1269 NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS NCY PERFORMANCE GEAR SET (16*42) FOR CHINESE SCOOTERS WITH 50cc qmb139 MOTORS CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE GEAR SET 16*42 FOR 139QMB 49/50CC 4-STROKE ENGINES. THE FINAL DRIVE RATIO IS THE LAST BIT OF... MSRP: Now: $63.95 Add to Cart Compare Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view POLINI | sku: 146-59 POLINI 107mm SPEED CLUTCH FOR 50cc QMB139 SCOOTERS POLINI SPEED CLUTCH IN 107MM FOR 2 STROKE AND 4 STROKE 50CC ENGINES. POLINI'S SPEED CLUTCHES FEATURES LIGHTWEIGHT REINFORCED CLUTCH BLOCKS AND FIBER REINFORCED SHOES FOR LONG LIFE, GOOD GRIP AND SUPERIOR HEAT RESISTANCE. GREAT FOR USE ON STOCK... MSRP: Now: $62.95 Add to Cart Compare Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view NARAKU | sku: 137-80 NARAKU PERFORMANCE 50cc QMB139 & PIAGGIO TORQUE SPRING BASE FOR SCOOTER NARAKU PERFORMANCE TORQUE SPRING BASE FOR 50cc QMB139 ENGINES, APRILIA, HONDA, PIAGGIO, DERBI, KYMCO, AND MUCH MORE! NARAKU TORQUE SPRING BASE ALLOWS FOR SMOOTHER TORQUE SPRING ACTION THROUGH THE USE OF BALL BEARINGS. THIS ALLOWS THE... MSRP: Now: $38.95 Add to Cart Compare Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view SSP-G | sku: 169-484 PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES PERFORMANCE LIGHT CLUTCH BELL WITH COOLING FINS FOR MINARELLI STYLE 50CC 2-STROKE ENGINES CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 125mm NUMBER OF SPLINES: 16 SPLINED INNER DIAMETER (PEAK TO PEAK): 10... MSRP: Now: $32.95 Add to Cart Compare Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view POLINI | sku: 146-46 POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 & 6 GRAM WEIGHTS POLINI 16X13 ROLLER WEIGHT TUNING KIT IN 4.5, 5, 5.5 AND 6 GRAM WEIGHTS. FOR USE WITH HONDA RUCKUS 50, METROPOLITAN, 94-01 ELITE 50, KYMCO ZX50 AND AGILITY 50, SYM DD50, CHINESE QMB139 50CC ENGINES AND MORE. PLEASE NOTE: THESE... MSRP: Now: $27.95 Add to Cart Compare Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view SSP-G | sku: 169-444 SSP-G QMB139 50cc - 100cc ADJUSTABLE RACING CLUTCH HIGH PERFORMANCE ADJUSTABLE RACING CLUTCH FOR 50CC ENGINES. SPRING LOADS CAN BE ADJUSTED BY USING THE LOCK-IN POSITIONS. UNDER THE CLUTCH SHOES SCREWS ARE ATTACHED TO FUNCTION AS ADJUSTABLE INERTIA WEIGHTS.APPLICATIONS INCLUDE: CHINESE... MSRP: Now: $39.95 Add to Cart Compare SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
SALE Quick view SSP-G | sku: 169-197 50cc SSP-G PERFORMANCE SUPER TRANSMISSION KIT QMB139 50cc MOTORS *OLD VERSION* SSP-G AFTER-MARKET PERFORMANCEGY 6 50 TRANSMISSION KIT FOR QMB139 ENGINES. 1500 RPM SPRING SPRING INNER DIAMETER: 49mm SPRING HEIGHT: 107mm ROLLER WEIGHT SIZE: 16X13mm (8G) VARIATOR OUTER DIAMETER: 87mm CLUTCH DRUM NUMBER OF SPLINES:... MSRP: $199.95 Was: $199.99 Now: $175.00 Add to Cart Compare
Quick view NCY | sku: 1200-1051 NCY (16x13) ROUND ROLLER WEIGHTS FOR 50cc - 100cc QMB139 MOTORS NCY 16x13 ROUND ROLLER WEIGHTS FOR 50cc - 100cc 4-STROKE QMB139 ENGINES GEAR RATIO IS CHANGED BY THE UP-AND-DOWN ROLLING MOVEMENT OF THE ROLLER WEIGHTS IN THE RAMP OF THE MOVEABLE DRIVE PULLEY (MDF) NOW THE INNOVATIVE... MSRP: Now: $15.95 Choose Options Compare Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected × OK
Quick view GY6 STORE | sku: PKGY650-1 NCY GY6 50cc 80cc 100cc STAGE 1 PERFORMANCE KIT NCY GY6 50cc STAGE 1 PERFORMANCE KIT With an abundance of GY6 50's on the market, a need for bolt on extra power is now available through GY6 Store. Thanks to the great products from NCY, this kit includes a stainless NCY exhaust and ... MSRP: Now: $389.95 Add to Cart Compare Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected
Quick view SSP-G | sku: 169-171 SSP-G QMB139 50cc - 100cc ADJUSTABLE CLUTCH SET HIGH PERFORMANCE ADJUSTABLE CLUTCH SET WITH A VENTILATED CLUTCH BELL FOR QMB139 50cc, 4-STROKE ENGINES. CLUTCH BELL INNER DIAMETER: 107mm CLUTCH BELL OUTER DIAMETER: 115mm CLUTCH INNER DIAMETER: 12mm USES 6901 RS BEARING NUMBER OF... MSRP: Now: $129.95 Add to Cart Compare Previous 1 2 3 Next Previous 1 2 3 Next Compare Selected
