Last items in stock Home CHAIN RK420MXZ 104C RK 12200337 €23.17 420 MXZ Drive ChainAll RK chains are pre-stressed and pre-stretched to ensure equal load distribution and minimal maintenance They're made of the highest grade medium carbon alloy steel available, with all components shot-peened and heat-treatedMade for the serious motocross racer Feature chromoly steel construction with seamless rollers and bushings, and...