Upgrade your takeoff and mid-range acceleration with the NCY Racing Clutch. Specifically engineered for 50cc 139QMB engines, this premium clutch features lightweight gray clutch shoes and stiff 2000 RPM red springs. By allowing the engine to reach a higher power band before engagement, you’ll experience a snappier throttle response and eliminate "bogging" during initial acceleration.
Manufactured in Taiwan to ISO 9001 standards, NCY is the trusted leader in aftermarket CVT performance, offering superior durability and heat resistance compared to stock OEM components.
Fits most 139QMB-based 50cc / 80cc Chinese Honda Clone 4-stroke engines and Genuine 2-Stroke models. If your engine code contains "QM" or "FM", this product is a direct-fit performance upgrade.
If installing on a Honda Ruckus (GET) or Honda Metropolitan (GET 2012+), you MUST upgrade to the NCY secondary sliding sheave/pulley shaft (SKU: 1200-1268). This racing clutch is not compatible with the stock Honda pulley shaft.
Pair this clutch with an NCY Performance Bell and Variator for the ultimate CVT transmission overhaul.
NOTE: Performance parts are not returnable. Ensure model fitment before purchase.
