XLC Comp Racing wheelset WS-R03 Hubs: forged aluminium, CNC milled. Hub body silverHigh-precision industrial bearings(VR-2-split HR-4-split) with long-term grease lubrication for lasting protection and glide. The hub bearings can be adjusted while the wheel is mounted.Rims: 28" aluminium with brake indicators. Height: 23mm. Clincher tyre. Inox spokes: progressive blade spokes are only used by Miche. Radial, VR 24 X spokes HR 28 X spokes.Weight: VR approx. 945g HR = approx. 1175g quick release = approx. 100g , without weight limit. - Compatibility: Shimano 9-10 speed - Freewheel: ERGAL 7075.