Rim: RYDE Double wall "Taurus 21", 28"/29", 21-622, height: 20 mm, 36 holes, AV/DV valve, for disc brake, single eyelet, black (0.349.011/7) Hub: SHIMANO hub dynamo "DH-3D37", 36 holes, 6 V / 3 W, hollow axle 9 mm, 100 mm installation width, Center Lock disc brake mount, black (0.710.026/6) Spokes: ALPINA, 2 mm Niro, black, 284 / 285 mm Axle Hollow Axle Mounting Front Wheel Article Type Design Double Wall Brake Mount Hub Disc - Center Lock Brake System for disc brake, Center Lock ETRTO 21-622 Features Hub Dynamo Application Other Rim Type Clincher Rim Color black Rim Height 20 mm Rim Model Taurus 21 For Wheel yes Main Color black Wheel Size 28 / 29 " Hub Color black Hub Model DH-3D37 Spoke Diameter 2.00 mm Spoke Color black Spoke Hole single eyelet Number of Spoke Holes 36 holes Spoke Length left 284 mm Spoke Length right 285 mm Spoke Material Niro Valve Type Woods (DV) , Schrader (AV)