EK CHAIN PBR 420SR 12/60 - Standard Rear Sprocket Chain kitRef : EKC03138A / 3067792

EK/PBR 420SR Chain Kit 12/60 - Standard Sprocket

Designed for urban use, this EK CHAIN kit combines the SR range—known for its long-lasting flexibility—with a standard steel sprocket. The plates undergo a specific heat treatment that increases wear resistance without making unverified claims: it is a structural reinforcement aimed at extending the lifespan under common road and city conditions.

• Composition: steel-colored chain, steel sprocket
• Transmission: front sprocket 12 teeth / rear sprocket 60 teeth
• Number of links: 134 (ready-to-mount size or adjustable according to model)
• Pitch: 428 (as indicated by the manufacturer)
• Relative lifespan: 200 (relative index for 100 links)
• Weight: 0.9 kg / 100 links
• Brand: EK CHAIN — Manufacturer reference: Not provided

This kit is particularly suited for small urban displacement bikes and lightweight machines listed below, but it is also compatible with any motorcycle that has a pitch of 428 and a ratio of 12/60. Ideal for replacing a worn transmission and regaining smooth and reliable control for daily use.

• SHERCO SM 50 FREEGUN (2013)
• SHERCO SM 50 (2013)
• SHERCO SM 50 BASE (2012)