This pocket bike CVT transmission has been discontinued and is no longer available. Continuously Variable Transmission (CVT) with 20 tooth 8 mm 05T chain drive sprocket. This belt drive CVT fits most 43cc, 47cc, and 49cc X1 & X2 type pocket bikes, as well as many dirt bikes and go karts. Transmission cover is included. Gear ratio is approximately 7:1 with a clutch drum inner diameter of 77 mm. Accepts standard clutch pad assemblies with outer diameter of 3" (76 mm). ![]() | |