BikeMaster Yamaha Rear Steel Sprocket 520 37T - Black

When you're looking to replace the rear sprocket on your Yamaha, especially if you're aiming for a bit more punch off the line, this BikeMaster 37-tooth sprocket is a solid choice. It's designed for the 520 chain size, which is common on many Yamaha sport ATVs. This sprocket is built to handle the demands of the rear wheel, ensuring it holds up well over time.

This sprocket is made from 1045 steel, a well-built material that offers good durability for this application. It's coated with a black Cataphoresis finish, which gives it a clean look and helps protect it. BikeMaster designed these sprockets for a direct fit on a range of Yamaha models, including popular ones like the YFM350 Raptor, YFM700R Raptor, and YFZ450R. The 37-tooth count means it's a slightly larger size than stock on some models, which typically translates to improved acceleration.

It's a good idea to check your specific Yamaha model and year against the fitment list to make sure this is the right tooth count for the performance change you're after. BikeMaster also offers a line of chains that are designed to work well with their sprockets.