RK 420MXU2 X 136L MX U RING CHAIN GOLD

GB420MXU is made for the professional motocross racer, featuring new U sealing rings. The lightweight heavy duty race chain has greatly improved heat resistance and anti-abrasion properties and is designed to provide the most consistent power delivery & increased chain life.

MXU chains are designed to provide the most consistent power delivery and increased chain life.

All components are heat treated using RK's exclusive HIT (Heat Induction Transfer) process.

The lightest sealed-ring MX chain on the market
Designed for the professional motocross racer
Designed to deliver consistent power delivery with an extended chain life
Chains include clip connecting link