The EK/PBR 520SRX2 13/49 chain kit with ultra-light sprocket is designed for motocross riders looking for a complete, robust, and lightweight set. Built around the SRX series that combines longevity and value for money, this kit includes chain, sprocket, and rear sprocket for a simple and clean transmission replacement.
- Type: 520 chain kit (chain + 13-tooth sprocket + 49-tooth rear sprocket)
- Pitch: 520
- Number of links: 116
- Color / finish: Steel / Steel
- Rear sprocket: Ultra-light aluminum, lightened to reduce unsprung mass
- Relative lifespan: 3300 (indicative value for 100 links)
- Weight: 1.54 kg for 100 links
Suitable for the motocross world, this EK CHAIN kit is particularly well-suited for small to medium displacement off-road bikes. It will be particularly compatible with the following models:
- BETA RR 390 4T RACING (2022)
- BETA RR 390 4T (2022)
- BETA RR 390 4T ENDURO RACING (2019)
Manufacturer reference: Not provided. This product is intended for demanding riders who want a complete transmission replacement with an ultra-light aluminum rear sprocket while maintaining the reliability of a steel chain.