
The RENTHAL Ultra-Light 150U mud-resistant sprocket combines lightness and durability for off-road use. Machined from 7075 T6 aluminum, it offers excellent mechanical strength while reducing unsprung mass. The specific tooth profile facilitates mud evacuation to limit clogging and reduce friction between the chain and sprocket.
Designed for motocross, MX, SX, and enduro, this Renthal sprocket easily fits on 520 pitch transmissions and is aimed at riders seeking rear wheel responsiveness and part longevity. Its precise machining improves chain/sprocket contact and can help reduce premature wear in muddy conditions.
Manufacturer reference: 150U-520-50GBPE. Examples of compatible motorcycles: YAMAHA YZ 450 F (2026), FANTIC XX 125 (2022), YAMAHA WR 450 F (2026).