
EK/PBR 420SR Chain Kit 14/52 - Standard Sprocket
Manufacturer reference: Not disclosed
Designed for small urban motorcycles, this EK SR chain kit combines a robust 420 chain with a steel sprocket ratio of 14/52 (14-tooth front sprocket / 52-tooth rear sprocket) for common transmissions of 50 cc. The SR series focuses on a specific heat treatment of the plates that enhances wear resistance while maintaining the chain's flexibility after miles in the city.
This kit is particularly suitable for urban use and models listed such as RIEJU MRT 50 SM PRO (2013), RIEJU MRT 50 ENDURO (2013), and RIEJU DRAC 50 (1997). To ensure longevity and safety: regularly check the tension, inspect the condition of the sprocket and chain teeth, and lubricate the chain according to the manufacturer's recommendations.