420 Chain Sprocket Kit With 120 Link Chain And Breaker For Dirt Bikes ATVs Go Karts 35T Rear Sprocket 13T Front Sprocket 17mm Bore Off Road Ready Fits 50cc To 170cc Machines

Off-Road 420 Chain Sprocket Kit with 120-Link Chain
✔️ 35T rear, 13T front, 17mm bore; 92mm mounting, 120-link chain

This 420 chain sprocket kit provides a complete drivetrain upgrade for dirt bikes, ATVs, go-karts, and mini bikes. It is designed for 50cc to 170cc engines and includes everything you need for a simple, secure installation in off-road environments.

✅ 35T rear sprocket; 13T front sprocket; 17mm bore (0.67 in)
✅ Mounting hole distance 92 mm (3.62 in); center bore 76 mm (2.99 in)
✅ 120-link chain with breaker included
✅ Fits 50cc-170cc dirt bikes, ATVs, go-karts, and mini bikes

💡 What is a chain sprocket kit used for in off-road drive systems?

This handy upgrade helps improve gearing and durability for dirt bikes, ATVs, go-karts, and mini bikes. - Enhances drive efficiency with correct gear ratios for 50cc-170cc engines - Includes the 120-link chain and breaker for easy sizing and maintenance - Front 13T and rear 35T sprockets with 17mm bore fit common frames