EK/PBR 520MRD7 13/49 Chain Kit - Ultra-Light Sprocket by EK CHAIN. Designed for motocross and off-road use, this kit combines a 520MRD7 chain in gold/gold finish with an ultra-light aluminum sprocket to reduce unsprung mass without sacrificing track performance.
- Type: 520 chain kit (sprocket 13 / sprocket 49)
- Number of links: 116
- Color: Gold / Gold
- Sprocket material: Aluminum (ultra-light)
- Weight: 1.47 kg for 100 links
- Relative lifespan: Index 450 (for 100 links)
- Manufacturer reference: Not provided
This kit is aimed at riders looking for a lightweight and responsive transmission for competition or training. The 520MRD7 chain offers a balance between reduced friction and abrasion resistance, while the aluminum sprocket lightens the overall setup and enhances the responsiveness of the drivetrain. Ideal for replacing or optimizing the transmission of a motocross bike.
Compatible motorcycles (examples):
- BETA RR 390 4T RACING (2022)
- BETA RR 390 4T (2022)
- BETA RR 390 4T ENDURO RACING (2019)
Standard 520 mounting. Follow the manufacturer's recommended torque and tension settings to ensure the longevity and safety of the transmission.
