
EK/PBR 420SR Chain Kit 11/47 - Standard Sprocket: a chain + sprocket set designed for urban cycles and small displacement motorcycles. The SR series features a specific heat treatment of the plates to maintain flexibility and strength even after miles in the city. The set is delivered in steel/steel color, ready to replace your original transmission.
This kit is aimed at urban riders looking for a robust replacement part for scooters and small 50cc motorcycles. Compatibility examples: RIEJU RS2 50 MATRIX PRO (2010), RIEJU RS2 50 NAKED (2009), RIEJU NKD 50 (2007). During installation, check the tension and wear of the sprocket and the crown, and use the appropriate connecting link or a riveting tool for secure installation. Regularly lubricate the chain to preserve flexibility and longevity.