Upgrade your CVT driven pulley with the RDLN Adjustable Sheave Rear Clutch Pulley for 139QMB and GY6 50�100cc engines. Brushed aluminum sheave body with six adjustable ramp grooves � three straight ramps for quicker off-the-line takeoff and three curved ramps for higher top speed. Includes center red-sealed bearing (6901RS), HK172518RS needle bearing, torque driver collar, adapter bushing, and hex nut. Also listed as OPS SKU 151-276.
If your 50cc-100cc engine code contains "QM" or "FM" it is likely compatible with this pulley.
Off-road use only. Not intended for use on public roads. Not legal for use in California on pollution-controlled vehicles. Check local laws before installing.
