The EK/PBR 420SR 13/53 chain kit is a transmission set designed for urban use on small-displacement motorcycles. It includes a 13-tooth sprocket and a standard 53-tooth rear sprocket mounted on a chain with a pitch of 420. The SR series is distinguished by a specific heat treatment of the plates that maintains the flexibility of the chain even after extensive use, while increasing the mechanical strength of the components.
- Brand: EK CHAIN
- Type: Chain kit (sprocket 13 / sprocket 53)
- Pitch: 420
- Number of links: 134
- Color: Steel / Steel
- Sprocket material: Steel
- Relative lifespan (for 100 links): 200
- Weight: 0.75 kg / 100 links
This kit is aimed at riders looking for a robust and flexible chain for daily urban use: short trips, frequent stops, and changing conditions. Easy to install during routine maintenance, it offers compatibility with the 50 cc models listed below, without altering the original geometry.
- RIEJU MRT 50 SM PRO (2013)
- RIEJU MRT 50 ENDURO (2013)
- RIEJU DRAC 50 (1997)