Track bike hub fixed gear hub, fixed gear hub set, track rear Hub fixie gear hub is one of the most popular bicycle hub products in our store, it's suitable for fixed bike. The code of this product is FH003, and the raw materials are aluminum alloy and steel. Parameter: FH005O.L.D: F100mm R120mm, Weight: F214g R290g ±5g, Flange PCD 56mm(L/R), Sealed bearings: F2 / R2Spoke holes: F20 R24 * 13/14G Material: AL6061 for shell, AL7075 for axle. Advantage: The appearance is simple design and easy to clean, and prevents scratches, longer service life makes it more cost-effective. Service: Our core competence is that we guarantee the quality and we provide various customize service, according to your requirement for design, material and package. At the same time to provide good after-sales service and the best quality transportation service.