
Moose Offroad Hard Rear Sprocket - Parts (Manufacturer's Ref: 1210-251-49-STL)
Rear sprocket made of steel designed for enduro and motocross practices. CNC machined from high carbon C45 steel, this sprocket offers tight tolerances and precise geometry for a snug fit with the 520 chain. The lightening holes reduce mass without compromising structural integrity, while the black zinc finish provides good corrosion resistance and a sleek appearance on the rear of the bike.
Ideal for those looking to change the sprocket to adjust the final ratio or replace a worn part. Suitable for many off-road motorcycles equipped with 520, including models such as Yamaha YZ 125 (2026), Honda XR 250 R (ME06), and Yamaha YZ 125 Monster Energy (2025). Check the bore diameter and the mounting pattern of your hub before installation.