Except for the fact these are the more convenient clincher version instead of tubular, the Campagnolo Bora Ultra 35 Wheelset featured here is the same model that Valverde used to dismantle the opposition in the latest of his La FlecheLiege doubles. While we don't all have the surgical nous with which the Spaniard controlled and dissected his opposition, we can at least take advantage of the same tools. Not only does the Bora Ultra 35 rim cut through the wind like a medical grade scalpel, it also features an updated rim width. For 2015, the Bora's width is increased to 24. 2 millimeters, which expands the tire's volume and straightens the sidewalls. This makes for more secure grip in corners and lower rolling resistance while letting you run a lower PSI for a cushier ride. The width also nets better lateral stiffness, more structural integrity, and in a counter intuitive twist actually improves aerodynamics. The CULT cup and cone bearings are behind Campagnolo hubs' legendary rolling performance. CULT marries the smoothest ceramic bearings with thermochemically treated Cronitect races for a claimed 3. 5 more watts per pedal stroke over non CULT bearings. The interface between the ceramic balls and Cronitect races is so smooth that they virtually don't wear out and only require a thin film of oil instead of grease. All told, Campagnolo touts these as the lowest friction bearings in the world. While we normally approach anything that smacks of marketing hyperbole with healthy skepticism, taking the Boras for a spin lends credence to Campy's claim. A good wheel can't just go well it also has to stop well, and the new 3Diamant braking surface addresses some of the key braking issues we've had with carbon rims in the past. Campagnolo literally uses diamonds to hone the brake track to near perfection, removing imperfections and resin so that the pads connect straight to a strip of slightly textured carbon. This reduces the time it takes for the brake pads to gr...