RK GB420MXZ4-124 Gold Pro MX Chain sizing-jersey-carbon-youth S2 A (1972-1973)

S2 A (1972-1973)

GasGas: Contact 250 Trials

Reduces rider fatigue

Yamaha - V-Max 1200 - 2001

RK GB420MXZ4-124 Gold Pro MX Chain sizing-jersey-carbon-youth S2 A (1972-1973)Gold 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