XRU Chain

Professional Racing Chain for MotoGP and WSBK

RK GB520XRU is developed for Superbike Road Racing, featuring MotoGPTM Racing Chain Design Technology, to be only 645.6g/link.

RK GB520XRU features RK's exclusive technology of Ultra Thin Seal, UW-Rings, minimizing the chain weight and friction loss possible.


RK GB520XRU is special chain design for racing purposes, featuring high performance for the best lap time. GB520XRU is The Choice of Champions, used by International Top Teams racing in MotoGP™, World SBK and British Superbike.

Specialized for Track usage and Strictly not for Street Usage.