
EK/PBR 420SR Chain Kit 12/52 - Standard Sprocket
Designed for small displacement bikes and urban use, this EK CHAIN kit includes a 420 chain from the SR series and a standard steel sprocket with 52 teeth, paired with a 12-tooth pinion. The SR series features a specific heat treatment of the plates to maintain the flexibility of the chain even after long hours on the road, while improving wear resistance.
This kit is suitable for the mentioned 50cc scooters and supermoto (Rieju MRT 50 SM/Enduro, Rieju Drac 50) and is ideal for riders looking for a robust and easy-to-maintain transmission. Perfect for daily urban use: regularly check tension and lubrication to maximize the chain's longevity.