Ideal for climbers, although not just for them: Racing Light XLR wheels. In this version they are enhanced by carbon fiber hub bodies that act on Cronitect® steel bearings with CULT ceramic ball bearing technology, improving smoothness nine fold in comparison to standard steel versions. Exemplary results: they improve the lightness, the rotation fluidity of the hubs & their life over time. The low profile rim is available for tubular or clincher tyres. It is fitted with 22 radial spokes on the front wheel & 24 on the rear with doubling of the spokes on the freehub side (Two-to-One technology) to obtain a snappy response during sprints & uphill. The carbon rims are made using a particular technique by which the carbon fabric is aligned so that the resulting rim is always balanced. Racing Light XLR wheels require the use of brake pads (supplied) specially designed for carbon fiber. The carbon hub is strong & makes it possible to save weight compared with the aluminium version. Racing Light XLR is compatible with Campagnolo, Shimano Inc.or Sram Co. drivetrain systems & are supplied with the new Fulcrum quick release.