EK CHAIN 420SR 420 Universal ChainRef : EKC00720A / 1129896014

EK 420SR 420 Chain by EK CHAIN: a compact and robust transmission chain designed for small displacement bikes, quads, and off-road machines. The SR series focuses on thermally treated plates to maintain flexibility and durability, even after intensive use. Designed to meet urban constraints as well as off-road conditions, it adapts to lightweight roadsters, motocross bikes, and demanding quads.

• Pitch: 420 (standard for 50 cc and small transmissions)
• Number of links: 110
• Color: Steel / Steel
• Weight: ≈ 0.83 kg for 110 links (0.75 kg /100 links)
• Relative lifespan index: 200 (manufacturer reference based on 100 links)

Ideal for urban, quad, motocross, and roadster vehicles, this chain offers a good compromise between strength and operational flexibility. Its thermal treatment of the plates aims to enhance wear resistance and longevity without compromising the smoothness of the drivetrain. When mounted and adjusted correctly, it will effectively replace a worn chain on small motorcycles and quads.

Examples of compatible motorcycles: RIEJU MRT 50 SM (2025), FANTIC XM 50 PERFORMANCE (2025), BETA RR 50 MOTARD (2025).

Manufacturer reference: 420SR-STL 110 SPJ — Brand: EK CHAIN