Disc brake version of Campagnolo`s acclaimed WTO 45. Wind Tunnel Optimized (WTO) full carbon rim with an extremely aerodynamic 45mm profile packed full of Campagnolo`s latest technology. Wheel structure enables reducing energy dissipation transferring all the energy produced by the cyclist to the asphalt. The streamlined design of the central part of the hub decreases the frontal area of the component whilst the special design of the flanges favors airflow detachment. The Bora WT0 45 wheel is entirely hand-assembled by a specialized Campagnolo technicians and is checked in every tiny detail with electronic instrumentation. 19mm inner width accommodates 23mm to 28mm tires for ideal interface between tire and rim. Black aluminum monolithic hub with ceramic USB cup and cone bearing system. Includes tubeless valve and valve extender