BikeMaster Yamaha Rear Steel Sprocket 520 40T - Black

This is a BikeMaster 520 40-tooth steel rear sprocket, finished in black. It's designed to fit a range of Yamaha sport ATVs, including models like the YFM350 Raptor, YFZ450, and YFZ450R. Sprockets are a key part of your ATV's drivetrain, transferring power from the chain to the rear wheel, and this one is built to be a solid replacement.

BikeMaster makes this sprocket from 1045 steel, which is a well-built material for sprockets that need to hold up to the demands of off-road riding. It's coated with a black Cataphoresis finish that looks good and helps protect the steel. The 40-tooth count is a common size that offers a good balance between acceleration and top speed for many applications. This sprocket is made for a direct fit, meaning it should install without needing modifications on the compatible Yamaha models.

This sprocket is a good option if you're replacing a worn-out stock sprocket or looking to change your gearing. It's designed to work well with BikeMaster chains, ensuring smooth power delivery to your rear wheel.