Tune your CVT's backshifting and eliminate belt slippage with the NCY 1500 RPM Performance Compression Spring (Contra Spring). Engineered for Minarelli 50cc 2-stroke engines, this upgraded clutch torque spring applies increased pressure to the rear pulley sheaves � keeping your drive belt at peak tension during heavy acceleration and uphill loads. ISO 9001 certified, made in Taiwan.
Fits short-case and long-case 2-stroke Minarelli horizontal and vertical engines. Will NOT fit 4-stroke GY6 (139QMB) engines.
This product is intended for off-road/racing use only. Not legal for use in California on pollution-controlled vehicles. Performance upgrades are not covered under warranty.
California Prop 65 Warning: www.p65warnings.ca.gov
