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Pulley 18x14mm Sliding Roller Weights
Hooligan 170
you may need to use slightly lighter roller weights to maintain your target RPM
CSC Model Compatibility
When this occurs
NCY Racing Clutch - Performance GY6 50cc QMA/ 139QMB Engines GY6 performance Pulley 18x14mm Sliding Roller WeightsNCY Performance Racing Clutch for GY6 50cc 139QMB 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, youll experience a snappier throttle response and eliminate "bogging" during initial acceleration. Manufactured in
