Product Details
DESCRIPTION: NCY Clutch Compression Spring also known as an NCY Contra Spring.Compression / Contra springs do a couple of things. First, they supply the pressure to engage the belt. They also determine the rate at which the CVT transmission changes from low to high gear. A 1000rpm spring will go into a higher gear sooner than a 2000rpm spring.This NCY 1000 rpm compression/contra spring will fit:Yamaha Zuma 2T 50ccMost Minarelli applicationsSpecifications:1000 RPM Compression SpringWire Diameter: 4.0mmInner Diameter: 44.0mmLength: 108.0mmAbout NCY:NCY stands as the premier provider of aftermarket performance components for leading scooter brands such as Honda, Yamaha, Genuine, Vespa, Piaggio, SYM, Lance, KYMCO, and GY6/QMB powered scooters. Established in 1997, NCY adheres to rigorous quality standards and holds ISO 9001 certification.NCY performance parts are made in Taiwan.
SPECIFICATIONS: 1000 RPM Compression SpringWire Diameter: 4.0mmInner Diameter: 44.0mm
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: GY6, Minarelli, 2-Stroke
- Fits Models / Common Applications: Yamaha Zuma and other compatible models may apply.
- Fitment Notes: Performance, CVT, Auto Transmission
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a Yamaha?
A: This SKU is listed with Yamaha model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for GY6 scooters?
A: This SKU is listed with GY6 engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 0.375 lbs |
|---|---|
| Dimensions | 7 × 2.5 × 2.5 in |
| Condition | New |
|---|
Tune your CVT engagement point with the NCY 1000 RPM clutch compression (contra) spring. The contra spring controls two things: it supplies pressure to engage the drive belt, and it determines the rate at which the CVT shifts from low to high gear. A 1000 RPM spring engages the higher gear range sooner than a higher-rated spring, making it ideal for low-end torque and urban riding. Fits most Minarelli 50cc 2-stroke applications and the Yamaha Zuma 2T. Made in Taiwan by NCY — ISO 9001 certified since 1997.
Specifications
• Rating: 1000 RPM
• Wire diameter: 4.0mm
• Inner diameter: 44.0mm
• Length: 108.0mm
• Made in Taiwan
Compatible Models: Models below and other bikes using horizontal 2T Minarelli engines
Models:
• CSC Bella Classic 50
• CSC Go
• CSC Go Max
• CSC Nitro Sport 50
• CSC Pug 50
• Yamaha Zuma 50cc 2T
Most Minarelli 50cc 2-stroke CVT applications (Yamaha Vino, BWS, Jog; Aprilia SR50, Mojito; CPI; Peugeot; MBK; and similar)
*Performance upgrades are considered racing parts and are not covered by warranty.
California Prop 65 Warning: www.p65warnings.ca.gov





