RK Racing 420MRU x 136L U Ring Chain

RK 420MRU is designed to be the Premium Replacement for OE 420 Non-sealed Chain, featuring RK`s only technology of Ultra Thin Seal, U Ring, make possible to design a Sealed Chain with the width of a Non-Sealed Chain.

Converting Non-Sealed to a Sealed Chain result at least 4 times chain life and minimum chain adjustment after initial stretch, while ensuring high efficient horsepower transmission from the engine to the rear wheel throughout the chain life.

RK 420MRU is an long lasting solution for daily business use vehicle or commute motorcycle.