The EK/PBR 520SRX2 13/49 - ultra-light sprocket kit is designed for motocross riders looking for a reliable and subtly high-performing set. Created by EK CHAIN, this kit combines the longevity of the SRX series with a lightweight aluminum sprocket, engineered for off-road conditions.
- Pitch: 520
- Number of links: 112
- Sprocket: aluminum (ultra-light version)
- Chain color: steel / steel
- Relative lifespan index: 3300 (for 100 links)
- Weight: 1.54 kg / 100 links
- Sprocket/crown: 13/49
This kit is suitable for off-road practices and routine maintenance interventions: complete replacement of chain/sprocket/crown to restore a safe and uniform drive system. The ultra-light aluminum sprocket helps to slightly reduce rotating mass without compromising ease of installation.
Compatibility (examples):
- YAMAHA WR 125 Z (2003 - 125 cm³)
- YAMAHA WR 125 Z (2002 - 125 cm³)
Manufacturer reference: Not disclosed. Before installation, check the exact compatibility with your model and the condition of the bearings and guides to ensure a durable installation.
