Moto-RaceSpares

Renthal's R4 SRS Road chain is a specially developed sealed ring chain utilizing 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.

The SRS ring is designed to maintain itself as the chain wears, keeping a tighter seal against the plates allowing better longevity.