Pit Bike Gears & Sprockets
Front sprockets in 420 & 428 chain pitch, 13T-15T, 17mm & 20mm shaft — for CRF50, XR50 & Chinese pit bikes
Extended swingarm chain also available for hop-up builds
Pit Bike Front Sprockets & Drive Chain
Front sprockets in 420 and 428 chain pitch for CRF50, XR50, KTM 50, and Chinese pit bikes. Available in 13, 14, and 15 tooth sizes with 17mm and 20mm shaft bore options — match the tooth count and shaft size to your specific bike before ordering. Going up one tooth on the front sprocket raises top speed; going down increases low-end pull.
420 Chain Sprockets
428 Chain Sprockets
Extended Swingarm Chain
Longer Chain for Extended Swing Arm — Required when fitting an extended swing arm on CRF50 and XR50 hop-up builds.































