RK GB420MXZ4-134 Gold Pro MX Chain HEADPIPES-MIDPIPES-TIPS FOR OF The performance-engineered single-layer construction and

The performance-engineered single-layer construction and linerless design offer enhanced wearability

the Asymmetrical Dual-pivot Arms

Removable inner padding for a customized fit

LH: 34028-0104

RK GB420MXZ4-134 Gold Pro MX Chain HEADPIPES-MIDPIPES-TIPS FOR OF The performance-engineered single-layer construction andGold premium MX non sealed 420MXZ4 drive chain. One of the lightest and strongest MX chains from RK. The lightest and strongest Motocross chain from RK. The MXZ4 is the next generation of motocross racing chains featuring Chromoly steel construction and seamless rollers and bushings. Made for the professional motocross racer. Features special alloy pins with RK special HCR Treatment (High Tech Chromium Carbide Layered Pins) which drastically improves