RK Clip type chain hitch 428XSO 725.90.47

RK is the leading manufacturer of motorcycle drive chains in Japan.

For more than 40 years, RK has been supplying all well-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 XSO:

This is an improved form of O-ring chains. Due to the special shape of the X-rings, the chain is sealed at four sealing points, the lubricant cannot escape.

In addition, the X-ring serves as an additional lubricant reservoir. Chain life is extended by approximately 30%. This technique has been developed by RK on the XW-Ring chain.

- X ring chain

- four sealing points

- Lubricant cannot escape

- Service life is extended by 30% compared to O-ring chain

- A further development of the X rings are the XW rings