RK GB420MXZ4-126 Gold Pro MX Chain vox aperture Features of the new BOXER

Features of the new BOXER 4T SAE 5W/40 MA2 Synthetic high-performance engine oil

Washes out with No-Toil cleaner minimizing the build up of old grease on filter edges

250 XC-W TPI 18-23

SX-SX-F 125-530 16-22

RK GB420MXZ4-126 Gold Pro MX Chain vox aperture Features of the new BOXERGold 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