Fulcrum Racing Speed XLR Dark Label Tubular Wheelset. You can now own the Racing Speeds in the Limited Edition Dark Label version which feature black hubs and a stealth graphic package. Racing Speed™ wheels are much loved by professional cyclists. Their widespread diffusion is due to the wheel's many features: the high rim profile combined with lightness make this model particularly suitable for the most varied racing situations. In the Racing Speed™ XLR version the hub body is made of carbon. The balls of the bearings implement CULT™ technology with its super-high strength and smoothness thanks to Cronitect® stainless steel with thermo-chemically treated surface layer. The rim has a 50 millimetre profile and is supported by 18 radially-laced spokes in the front wheel and 21 in the rear with doubling on the freehub side using Two-to-One™ technology. And buy this Wheelset you can Save 35% Off Fulcrum Racing Speed XLR Dark Label Tubular Wheelset Now £1,475.49.