
The EK/PBR 520M3 13/50 chain kit is designed for motocross practice and competition. Composed of a 520 chain in a gold finish paired with an ultra-light aluminum sprocket, it aims to reduce unsprung weight and provide a quick response to acceleration. Built to withstand the demands of the track, this kit offers a balance between strength and lightness suitable for high-performance off-road motorcycles.
This kit is aimed at riders looking to optimize their transmission: aluminum sprocket to limit weight, robust 520 chain with 114 links to fit 13/50 sprockets. Ideal for regular maintenance on muddy and dusty terrains, it is particularly suitable for YAMAHA YZ 250 F (2026), YAMAHA YZ 250 FX (2024), and YAMAHA YZ 250 F (CG40) (2021) models.