420 Chain Sprocket Kit With Chain Breaker For Chinese 50cc To 125cc Mini Bike ATV Go Kart Taotao Coolster SSR CRF50 CRF70 XR50 Pit Dirt Bike 41 Tooth Rear Sprocket 76mm Front 16 Tooth 17mm Bore
✔️ 41T rear, 16T front, 76mm bore, 92mm mount, 110-link chain
This 420 chain sprocket kit is designed for Chinese 50cc to 125cc mini bikes, ATVs, go-karts, Taotao, Coolster, SSR, XR50, CRF50/CRF70 pit bikes. It includes a 41T rear sprocket, 16T front sprocket, a 110-link 420 chain, and a chain breaker for quick, kit-style install. Built to withstand off-road riding, all components are manufactured with sturdy materials for long life.
✅ 420 chain included, 110 links
✅ Rear sprocket: 41T
✅ Front sprocket: 16T, bore 17 mm
✅ Front bore diameter: 17 mm (0.67 in)
✅ Center bore: 76 mm (2.99 in)
✅ Mounting hole distance: 92 mm (3.63 in)
✅ Chain breaker tool included
💡 What is a 420 chain sprocket kit used for on small bikes and ATVs? It's a handy upgrade that lets you dial in gearing for better drive performance. - Improves acceleration and top speed on 50cc-125cc engines - Includes chain, sprockets, and a chain breaker for easy installation - Fits standard 420 chains and 76 mm center bore with 92 mm mounting distance