EK/PBR 520SRX2 13/50 Chain Kit - ultra-light sprocket from EK CHAIN: a kit designed for motocross riders looking for a reliable and economical chain/sprocket/crown set. The SRX series benefits from extensive field experience and remains a popular choice for both training and amateur competition, thanks to its good balance between durability and cost.
- Configuration: 13 teeth sprocket / 50 teeth crown (13/50)
- Pitch: 520
- Number of links: 112
- Crown material: aluminum (ultra-light crown)
- Color: steel / steel
- Relative lifespan (for 100 links): 3300
- Weight: 1.54 kg / 100 links
The ultra-light aluminum crown reduces the overall weight without changing the engagement profile, while the 520 SRX2 chain remains a proven standard on many 125 motocross bikes. It is compatible with the models listed in top compatibility (notably several versions of the KTM 125 EXC from 1997–1998). Ideal for those looking to renew their drivetrain with parts designed to withstand the demands of off-road riding.
Usage advice: regularly check the tension, lubricate after each muddy outing, and replace the sprocket/crown/chain set to preserve longevity. Manufacturer reference: not provided.
