RK step motorcycle chain U-RING 420MRU 725.07.51

RK is the leading manufacturer of motorcycle drive chains in Japan. For over 40 years, RK has supplied all known Japanese motorcycle manufacturers as original equipment.

Also in racing, RK is the first choice of many teams in MotoGP, in motocross or even in the Paris-Dakar Rally.

RK MRU:

The MRU chain has been developed for low powered motorcycles that are equipped with a standard non-sealed chain.

- U-shaped chain

- Loss of lubricant is avoided.

- Ultra thin sealing ring

- Extremely narrow width

- Up to 100% longer life compared to standard unsealed chains.