RK GB420MXZ4-116 Gold Pro MX Chain Spare parts Four Stroke 4T Semi Synthetic

Four Stroke 4T Semi Synthetic JASO MA2 20w/50 4L

Yamaha YZ 125-450

Multi-Battery Type

KX 250 (2019-2024)

- NEW 11% lighter model

RK GB420MXZ4-116 Gold Pro MX Chain Spare parts Four Stroke 4T Semi SyntheticGold 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