
This part being universal, it may require adaptations
EK 420SR 420 Transmission Chain — Designed by EK CHAIN, the 420SR is a robust chain intended for urban, off-road, and recreational use. The SR series incorporates an innovative design that maintains the flexibility of the chain even after prolonged use. The plates benefit from a specific heat treatment to enhance their durability and wear resistance without claiming unverified performance.
This chain is aimed at riders looking for a reliable transmission for various practices: urban, quad, motocross, or roadster. Before installation, check the compatibility of the pitch and the number of links with your configuration and proceed with the appropriate tension adjustment and lubrication to optimize longevity. Suitable for the following 50 cc models: RIEJU MRT 50 SM (2025), FANTIC XM 50 PERFORMANCE (2025), and BETA RR 50 MOTARD (2025).