RK GB420MXU2-134 Gold U-Ring Chain YAMAHA pw 50 Sleek design minimizes interference with

Sleek design minimizes interference with rider boots

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RK GB420MXU2-134 Gold U-Ring Chain YAMAHA pw 50 Sleek design minimizes interference withRK420MXU narrow gold enduro motorcycle chainThe RK 420MXU is the lightest sealed ring enduro motocross chain available in market today, 13. 8g link, only 0. 1g link heavier than RK 420MXZ4 non sealed chainThe MXU chain series is the next generation of enduro motocross racing chains featuring the RK patented technology of Ultra Thin UW Rings, which make it possible to design a Sealed Chain with the weight of a Non Sealed Chain. UW Seal Rings stop