EK/PBR 520M3 13/49 Chain Kit - ultra-light sprocket by EK CHAIN: a set specifically designed for motocross, combining a robust 520 chain and an ultra-lightweight aluminum rear sprocket. Designed to minimize friction while supporting the traction and abrasion stresses encountered during competition and intensive training.
- Mounting: 13-tooth sprocket / 49-tooth sprocket
- Pitch: 520
- Number of links: 114
- Color: gold / gold
- Sprocket: ultra-light aluminum to reduce unsprung mass
- Weight: 1.36 kg for 100 links (reference)
- Relative lifespan: index 450 (for 100 links)
Ideal for motocross riders looking for a lightweight transmission without sacrificing longevity, this kit enhances acceleration and maneuverability on varied terrain by reducing peripheral mass. Regular adjustment and maintenance (tension, lubrication) are recommended to get the best performance from the chain and preserve the aluminum sprocket.
Common compatibilities: particularly suitable for SUZUKI RM-Z 250 models (2013, 2014, 2015) — check the pitch and the number of teeth recommended by the manufacturer before installation.
