Bicycle hub: HG system. 32 holes. 6 bolt disc brakes. This bicycle hub is equipped with a pair of quick-release shafts and two through-shaft end covers. Whether your box and fork are quick-release or through-shaft, it can be universal. Appearance design, the wheel hub part adopts weight reduction design. Lightweight and high strength aviation grade aluminum alloy material, light weight. Mainstream 6-claw design, full precision technical process. Compared with other hubs. This quick-release and through-shaft universal hub has a more harmonious and reasonable price. Most people can accept it. At the same time, it also has excellent quality and practicality. Our suggestion is that when you select it, check the tape or fork or wheel set. Make sure they are compatible with each other. Colour:blue Material:Aluminum Alloy Package Contents: 1 * front flower drum 1 * rear flower drum Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.