RK GB420MXZ4-128 Gold Pro MX Chain Shoulder Straps and 12% elastane

and 12% elastane

- Elbow and Shoulder EN1621-1 Level 1

Yamaha YZ400F 1998

Z125 Monkey

including the adjustment needles

RK GB420MXZ4-128 Gold Pro MX Chain Shoulder Straps and 12% elastaneGold 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