
EK/PBR 420SR Chain Kit 13/52 - Standard Sprocket
Designed for mopeds and small urban motorcycles, this EK SR chain kit combines a 420 chain and a standard steel sprocket in a 13/52 configuration. The SR series is developed to maintain the flexibility of the chain-sprocket connection over time: the plates receive a specific heat treatment aimed at increasing wear resistance and the longevity of the components.
This kit is aimed at urban riders looking for a robust and easy-to-maintain final drive. Ideal for a restoration or periodic maintenance of the transmission: checking the tension, regular lubrication, and inspecting the sprocket teeth will prolong its effectiveness.
Common compatibilities:
Manufacturer reference: Not provided