The front wheel hub consists of the axle, two bearings, a quick-release, two lock nuts, a bearing case and a brake disc mount. There are two versions available for the brake disc mount, a 6-hole fitting and a centerlock fitting. Please choose the fitting according to the brake disc. The axle is made of robust steel. The bearing surfaces are often polished and guarantee an optimal and smooth running. The bearing case is made of light aluminium and painted in the respective colour. The installation dimension of the complete front wheel hub is 100 mm.