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GB420MXZ, GB428MXZ (and Non-Gold 420MXZ & 428MXZ) GB520MXZ (and Non-Gold 520MXZ) Available in Gold or non-Gold finish. 420 and 428 MXZ racing chains are the strongest in their class giving you the best value-performance rating of any MX Racing Chain in the world today! Made for the serious Motocross racer, GB520MXZ chains feature Chromoly steel construction with seamless rollers and bushings, and oversized special alloy pins . . . Show More >
GB420MXZ, GB428MXZ (and Non-Gold 420MXZ & 428MXZ) GB520MXZ (and Non-Gold 520MXZ) Available in Gold or non-Gold finish. 420 and 428 MXZ racing chains are the strongest in their class giving you the best value-performance rating of any MX Racing Chain in the world today! Made for the serious Motocross racer, GB520MXZ chains feature Chromoly steel construction with seamless rollers and bushings, and oversized special alloy pins for added strength. All components are heat treated using RK’s exclusive HIT (Heat Induction Transfer) process. With a maximum tensile strength rated at 8800 foot pounds, GB520MXZ is the strongest Motocross chain available for the professional level 125cc to 250cc.
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