The EK/PBR 520SRX2 14/48 - ultra-light sprocket kit is designed for motocross riders who want a complete, lightweight final drive that meets 520 specifications. Developed by EK CHAIN, this kit combines an SRX series chain with a sprocket and a crown optimized for off-road use.
- Type: 520 chain kit (14 tooth sprocket / 48 tooth crown)
- Number of links: 114
- Color: Steel / Steel
- Crown material: Aluminum (ultra-light)
- Pitch: 520
- Weight: 1.54 kg (for 100 links)
- Relative lifespan: 3300 (index for 100 links)
- Brand: EK CHAIN — Manufacturer reference: Not disclosed
This kit provides a complete solution for restoring the final drive: chain, sprocket, and crown are sized for a 520 installation. The ultra-light aluminum crown reduces inertia without adding weight, a benefit appreciated in motocross for acceleration and maneuverability. Particularly suitable for the off-road machines listed below.
- HUSQVARNA WR 250 (2000 - 250 cc)
- HUSQVARNA WR 250 (1999 - 250 cc)
For optimal safety and longevity, have the chain adjustment and installation checked by a professional or follow the manufacturer's recommendations for your motorcycle.
