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EK/PBR 428 SR Chain Kit - 13/60-134 by EK CHAIN: a transmission kit designed for urban use, consisting of a chain from the SR series and a standard steel sprocket (13 teeth at the front / 60 teeth at the rear). The SR series features a specific heat treatment of the plates that maintains the flexibility of the chain even after prolonged use, while increasing its durability and wear resistance.
Designed for riders looking for a reliable replacement part for small trail bikes and 50 cc scooters, this kit follows classic specifications (pitch 428) and facilitates the maintenance of the primary transmission. The standard steel sprocket ensures compatibility and robustness suited to urban constraints and frequent starts.
Compatible with several Sherco 50 models (notably the recent SM‑R and SM‑RS models), this kit is a reasonable option for chain and sprocket replacement in daily use. Be sure to check the precise compatibility with your model before installation.
