
EK/PBR 420SR 11/48 Chain Kit - Standard Sprocket by EK CHAIN: a kit designed for the transmission of mopeds and small urban motorcycles. The SR series features a design that maintains the chain's flexibility even after prolonged use, thanks to plates subjected to a specific heat treatment to enhance durability and wear resistance.
Designed for urban use and daily constraints in the city, this kit is aimed at riders looking for a robust and easy-to-maintain transmission. Check compatibility (sprocket, crown, and number of links) before installation: it is particularly suitable for the listed 50 cc RIEJU models. For optimal longevity, regularly check the tension, lubrication, and condition of the sprocket teeth.