Product Description
NCY SUPER CVT TRANSMISSION KIT GEN 4 PLUS – GY6 125cc-232cc
Upgrade your GY6 CVT with the NCY Super Transmission Kit Gen 4 Plus. This complete performance package combines NCY's variator, drive face, secondary slider, bearing spring seat, 1500 RPM compression spring, performance clutch, clutch bell and multiple roller weights into one matched transmission setup.
Designed to improve acceleration, throttle response, CVT operation and overall transmission performance on compatible GY6-powered scooters and other applications.
100% NCY components. Made in Taiwan.
KIT INCLUDES
• NCY 114mm CNC-Machined Aluminum Drive Face
• NCY 115mm Gold-Coated Performance Variator
• NCY Secondary Slider / Torque Driver
• NCY Secondary Bearing Spring Seat
• NCY 1500 RPM Compression Spring
• NCY Gen 4 Performance Clutch
• NCY PTFE-Coated 10-Spoke Clutch Bell
• 18x14mm Roller Weight Tuning Sets – 10g, 11g & 12g
• Variator Slides
• Secondary Slider O-Rings
• Bearing Pack
DRIVE FACE
• CNC-machined aluminum
• OD: 114mm
• ID: 13.5mm
• Splines: 19
• Weight: Approx. 144.7g
• Lightweight performance design
PERFORMANCE VARIATOR
• Gold-coated aluminum-alloy housing
• OD: 115mm
• ID: 24mm
• Housing Height: 36mm
• Variator Top: 87mm OD / 15mm ID / 24mm H
• Includes variator slides
ROLLER WEIGHT TUNING KIT
• Size: 18x14mm
• 6 × 10g Rollers
• 6 × 11g Rollers
• 6 × 12g Rollers
Three weight options allow the CVT setup to be tuned for the desired acceleration and RPM characteristics.
SECONDARY SLIDER / TORQUE DRIVER
• Slider Plate OD: Approx. 141.84mm
• Funnel ID: 34mm
• Funnel OD: 43mm
• Funnel Height: 47mm
• Dual-range design
• 2 Pre-installed O-Rings
SECONDARY BEARING SPRING SEAT
• ID: 45.4mm
• OD: 57.5mm
• Height: 3mm
• Groove: 1.75mm
• Includes bearing pack
1500 RPM COMPRESSION SPRING
• Rating: 1500 RPM
• Length: 154mm
• ID: 48.5mm
• OD: 58.2mm
• Wire Gauge: 4.2mm
• Yellow performance spring
NCY GEN 4 PERFORMANCE CLUTCH
• Clutch ID: 24.3-28mm
• OD: 121.8mm
• Height: 36.85mm
• Large performance clutch shoes
• 3 Performance Clutch Springs
• 3 Clutch Weights
NCY PERFORMANCE CLUTCH BELL
• PTFE-Coated 10-Spoke Design
• Clutch Bell ID: 125mm
• OD: 137.34mm
• Height: 43mm
• 19 Splines
• Weight: Approx. 680.39g
• Vented design helps dissipate heat
COMMON FITMENT
Genuine Scooter:
Buddy 125 • Buddy 150 • Buddy 170i • Hooligan 170i • Blur 150
GY6 Applications:
125cc • 150cc • 170cc • 180cc • 200cc • Up to 232cc Modified Applications
Commonly used on compatible GY6 scooters and select ATVs, go-karts and other powersports applications.
COMMON ENGINE CODES
157QMJ • 152QMI • 161QMK • 1P61QMK
YN1P57QMJ • 1P57QMJ • JJ157QMJ
BN157QMJ • BN161QMK-A
1P52FMI • 154FMI
Other compatible QMI / QMJ applications
IMPORTANT FITMENT NOTE – PLEASE READ
This kit DOES NOT fit every GY6-style engine.
GO-KART OWNERS AND QMK ENGINE OWNERS SHOULD BUY WITH CAUTION.
Some go-karts, ATVs, QMK engines and specialty GY6 applications use different CVT components, shaft dimensions, variator configurations or rear transmission components. Having "GY6," "QMK," "QMJ," or a similar engine designation does NOT automatically guarantee fitment.
PLEASE COMPARE YOUR ORIGINAL CVT COMPONENTS, SHAFTS, SPLINES AND DIMENSIONS WITH THE SPECIFICATIONS ABOVE BEFORE ORDERING.
POLARIS RZR 170 NOTE
This kit can be used with certain Polaris RZR 170 applications; however, modification may be required. On some RZR 170 models, the center hole of the NCY variator top plate must be enlarged to properly clear the variator shaft.
NOT COMPATIBLE WITH
• Honda PCX
• Applications using incompatible CVT dimensions
• Specialty GY6 / QMK configurations that do not match the listed specifications
INSTALLATION NOTES
A new, high-quality CVT drive belt is recommended when installing this kit.
The drive belt and belt-contact surfaces of the variator and drive faces MUST remain clean and dry. Do not apply grease to belt-contact surfaces.
Use appropriate heat-resistant moly-graphite grease only on components requiring lubrication, such as:
• Slider grooves
• Slider pins
• Bearing spring seat
• Inner funnel / secondary slider areas
REUSED ORIGINAL COMPONENTS
Installation requires reuse of certain original components, including:
• Variator Boss
• Washers
• Rear Pulley Plate Shaft
• Slider Pins
• Slider Seat Funnel Cover
• Clutch Nut
• Variator / Related Nuts
BASIC VARIATOR INSTALLATION
1. Open the clutch/rear pulley to create belt slack at the variator.
2. Install the variator and drive face while keeping the belt away from the center boss so the drive face can fully seat.
3. Verify the drive face and boss are properly seated. There should not be exposed splines between the properly seated components.
4. Reinstall the original variator fan, washer and nut.
5. Tighten to the proper torque specification for your specific vehicle. Always follow the vehicle manufacturer's service specifications.
IMPORTANT
CVT performance parts require proper installation and tuning. Roller weight selection, spring combination, belt condition and engine configuration can affect acceleration, RPM and top-speed characteristics.
Always verify fitment and installation requirements for your specific vehicle before installation.
CONDITION
Brand New
PACKAGE CONTENTS
• 1 × NCY CNC Aluminum Drive Face
• 1 × NCY Gold-Coated Variator Assembly
• 6 × 10g 18x14 Roller Weights
• 6 × 11g 18x14 Roller Weights
• 6 × 12g 18x14 Roller Weights
• 3 × Variator Slides
• 1 × NCY Secondary Slider
• 2 × Secondary Slider O-Rings
• 1 × NCY Bearing Spring Seat
• 1 × Bearing Pack
• 1 × NCY 1500 RPM Compression Spring
• 1 × NCY Gen 4 Performance Clutch
• 1 × NCY Performance Clutch Bell
Made in Taiwan
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Clutch kit
Great product.. I was missing small bears and they took care of me and sent them too me..