Ritchey SuperLogic Carbon 46mm tubular wheels are entirely hand-built with carbon rims that make it one of the lightest on the market. Ritchey claims that these rims are constructed with a unique blend of unidirectional, hi-modulus carbon and Boron which is 4x stronger than standard composite with ceramic braking surface for high strength and low weight. Internal 3/16 inches hex style nipples and DT bladed New Aero Light spokes are used for enhanced aerodynamics and serviceability. The cold forged WCS SL front hub has rounded flanges to support high tension radial lacing and smooth rolling, low maintenance precision bearings. The cold forged WCS SL rear hub uses precision bearings, optimal flange design for spoke support and is available in three lightweight alloy freehub body configurations Campy, Shimano and SRAM. Features: