EK CHAIN 420SR 420 Universal ChainRef : EKC00719A / 1129896013

EK 420SR 420 Transmission Chain (manufacturer part number: 420SR-STL 108 SPJ) — a chain designed to withstand the demands of everyday use, from urban runs to off-road sessions. The SR series prioritizes long-term flexibility: its plates undergo a specific heat treatment that enhances durability and wear resistance while maintaining consistent flexibility after long hours of riding.

• Brand: EK CHAIN
• Designation: 420SR 420
• Pitch: 420
• Number of links: 108
• Color: Steel / Steel
• Weight: 0.75 kg (for 100 links)
• Durability index (100 links): 200

Suitable for urban, quad, motocross, and roadster environments, this chain is particularly aimed at small displacement and lightweight machines — compatible with models such as RIEJU MRT 50 SM, FANTIC XM 50 PERFORMANCE, and BETA RR 50 MOTARD (2025). To ensure optimal longevity, maintain proper tension adjustment, regular lubrication, and check the condition of the sprocket and the crown. A reliable chain is the foundation of a clean transmission and a smooth ride.