
EK/PBR 520MRD7 13/50 Chain Kit - Ultra-Light Sprocket by EK CHAIN: a kit designed for cross competition, combining lightness and durability under the demands of the terrain. The gold chain reduces friction while maintaining high resistance to tension and abrasion, suitable for the challenges of the tracks.
The ultra-light aluminum sprocket reduces overall weight to optimize inertia and responsiveness of the transmission, while the chain, treated to limit wear, remains suitable for frequent cycles and the typical stress jumps of off-road riding. Standard mounting and tension for 520 sprocket/sprocket - ideal for riders seeking a balance between reduced weight and durability on trails or in closed parks.
Compatible with many cross models, including YAMAHA YZ 250F (2021–2022) and YZ 450F (2021). Check the number of teeth and pitch before installation to ensure proper fit on your machine.