EK/PBR 520M3 13/49 Chain Kit - ultra-light sprocket: a chain kit designed for off-road and motocross competition. Engineered to minimize friction while providing durability against traction and abrasion, it meets the severe demands of tracks and repeated jumps.
- Configuration: 13-tooth sprocket / 49-tooth sprocket (standard competition adjustment).
- Pitch: 520
- Number of links: 112
- Color: gold / gold — premium look and visible anti-corrosion treatment.
- Sprocket: ultra-light aluminum to reduce unsprung mass and improve the response of the suspension.
- Weight: 1.36 kg for 100 links (chain weight reference)
- Relative lifespan: 450 (reference for 100 links)
This chain kit is aimed at motocross riders seeking a responsive transmission, weight savings at the rear wheel, and a polished finish. Convenient for adjustments and maintenance in the paddock, it is particularly compatible with YAMAHA YZ 250 F (models CG21, CG25, CG27) — be sure to check the exact compatibility with your machine before installation. Manufacturer reference: not provided.
