
This part being universal, it may require adaptations
EK CHAIN 420SR – 420 Transmission Chain, 124 Links (Ref: 420SR-STL 124 SPJ)
Designed for small displacement bikes and lightweight vehicles, the EK 420SR chain provides a simple and robust solution for transmission. The SR series features a design aimed at maintaining the chain's flexibility even after extensive use. The plates undergo a specialized heat treatment to enhance durability and wear resistance, while retaining a steel/steel finish for a neutral and easy-to-maintain look.
Ideal for installations on 50cc and small displacement bikes — compatible with RIEJU MRT 50 SM (2025), FANTIC XM 50 PERFORMANCE (2025), and BETA RR 50 MOTARD (2025). For optimal longevity, ensure proper tension adjustment and regular maintenance (cleaning and lubrication). A raw and reliable chain for those seeking a high-performance wear part that is easy to replace.