This magnesium wheel hub measures 50mm in axle size and 115mm in width. It's a top - notch fit for 50mm axles, offering great performance and durability.

To use this wheel hub, simply fit it onto your 50mm axle. Make sure it's properly aligned and tightened. When using, avoid hitting hard objects to prevent damage. For maintenance, clean it regularly with a soft cloth and keep it in a dry place. If you notice any signs of wear or looseness, have it checked immediately.