MXZ4&5 Chains (Professional)

Professional Motocross Chain for MX/SX

RK 520MXZ5 applies the HCR Pin and special alloy steel for component making, resulting in a tensile strength as high as 35.6[kN] with weight as light as 1383.7[g/L].

RK 520MXZ4 features special alloy pins with RK special HCR Treatment (High Tech Chromium Carbide Layered Pins) which drastically improves the wear resistance of the Pin while absorbing shock loads from extreme jumps. 420 & 428 MXZ4 Chain

Better fatigue strength compare to 420MXZ & 428MXZ !