Sturmey-Archer Sturmey Archer X-FD Front Drum hub 36h, Silver Front Axle Type: 9x1Hub Center to Flange: 27.5mmHub Color: SilverHub Drilling: 36spokesHub Flange Diameter: 89.5mmHub/Brake Compatibility: DrumSkewer Included: NA, Bolt-OnWeight: 770g