The Campagnolo Bora Ultra WTO 45 DB road bike wheels for disc brakes are the best all-round wheels in the Campagnolo range. These road bike wheels have a unique combination of very good aerodynamics and a low weight of 1425 grams. The combination of a 45mm deep rim and low weight, makes these wheels ideal for use in hills and mountains. The Bora Ultra WTO wheels have received a substantial bearing upgrade over the Campagnolo Bora WTO wheels. The bearings feature CULT technology, which means they are ceramic cup-and-cone bearings. This makes the bearings run extremely smoothly and wear less quickly. Thanks to the 2-way fit system, you can ride tubeless as well as with folding tyres and inner tubes. The Campagnolo Bora Ultra WTO 45 DB wheels feature a 45 mm high aerodynamic rim of 26 mm externally and 19 mm internally. This makes the Campagnolo Bora Ultra WTO 60 wheels best suited to 25 mm tyres for the best performance. But it is also possible to go wider with 28 mm tyres for more comfort and a slightly lower tyre pressure of 5-6 bar (70-90 psi), depending on rider weight.