
EK/PBR 420SR Chain Kit 13/52 - Standard Sprocket
Designed for urban small-displacement motorcycles, this EK CHAIN 420SR 13/52 chain kit combines strength and flexibility for reliable daily transmission. The SR series features a specific heat treatment on the plates that maintains the chain's flexibility even after prolonged use, while increasing its wear resistance. Ideal for 50cc bikes looking for a durable and easy-to-maintain chain.
This kit is aimed at urban riders who want a hassle-free transmission: simple installation, compatibility with standard rear ends, and regular maintenance (cleaning and lubrication). Particularly suitable for the RIEJU models listed below.