
EK/PBR 420SR Chain Kit 11/60-138 - Standard Sprocket
Designed for urban use, this EK CHAIN 420SR chain kit combines durability and road handling for small displacement motorcycles. The SR series features a specific heat treatment on the plates, which preserves the chain's flexibility and enhances its wear resistance during regular city use.
Ideal for riders seeking reliable transmission in urban environments — daily commutes, shuttles, and quick rides — this kit fits many small motorcycles and scooters. To ensure optimal longevity, adhere to the tension and lubrication intervals recommended by your manufacturer.
Examples of compatible models: BETA RR 50 MOTARD (2025), BETA RR 50 MOTARD TRACK (2024), BETA RR 50 MOTARD SPORT (2024). Before ordering, always compare the sprocket/crown and the number of links with your machine's original equipment.