Renthal C521 REN SRS Road engine-gaskets-seals-themostat-gasket and are made of 21-2n/suh35ht

and are made of 21-2n/suh35ht stainless steel

1993-1999 KTM 125 SX

2004 VOR 530 EN-E

urban and semi-urban use

Renthal C521 REN SRS Road engine-gaskets-seals-themostat-gasket and are made of 21-2n/suh35htRenthal's R4 SRS Road chain is a specially developed sealed ring chain using Renthal's Self Regulating Seal (SRS) technology to increase the service life of the chain in road applications. The special SRS ring is pre loaded during assembly creating a spring effect. As the chain wears, conventional O rings and X rings lose their seal; however, the SRS ring has the ability to unload itself during use keeping a tighter seal against the side plates. This