This steel bearing hanger features a standard three - bolt pattern, which is a perfect fit for most three - bolt pattern cassettes. It comes with one set of cassette mounting holes, sized at 5/16' (8mm).

Using this rear axle steel weld - on bearing hanger is easy. First, make sure your cassette has a three - bolt pattern that matches this hanger. Align the hanger with the cassette through the 5/16' (8mm) mounting holes. Then, carefully weld the hanger onto the rear axle. When welding, wear proper safety gear to protect yourself from sparks. After installation, check regularly to make sure the welds are still intact. If you notice any signs of wear or damage, such as cracks in the welds, repair or replace the hanger as soon as possible. To keep it in good condition, clean it occasionally to prevent rust and corrosion.