Campagnolo bora wto 45 disc brake road wheelsetcreated to appear to a wider range of cyclists, the bora wto 45 disc brake compatible wheels are highly aerodynamic but also remain stable in crosswinds. Campagnolo has given them a 45mm deep carbon fibre rim, which at certain wind angles, actually provides you with extra thrust. This makes them ideal for triathlon and time trial tt use. Every last detail has been carefully thought out with these road bike wheels, as campagnolo has even streamlined the centre of the hubs to reduce drag, giving you every possible advantage as youre racing against the clock or sprinting away from the peloton.fast and efficient tubeless compatible road wheelsthe profile of the rim, which has an internal diameter of 19 mm, corresponds perfectly with 23mm, 25mm and 28 mm tyres. In addition, the 2 way fit rim offers its tried and tested technology with full compatibility with clincher and tubeless tyres. While the key purpose of these wheels is to deliver extreme performance, safety is also guaranteed thanks to the g3 spoking system with double spokes on the left of the front wheel, to ensure balanced and safe braking in all conditions.features rim material carbon rim type clincher rim height 45mm internal rim width 19mm external rim width 26.5mm maximum tyre size 700x28c spokes 24 steel spokes per wheel hubs black aluminium monolithic, aerodynamically shaped, usb ceramic cup and cone bearings axle compatibility front 12x100mm thru axle rear 12x142mm thru axle cassette compatibility shimano option shimano sram 9,10 and 11 speed road cassettes not sram xd types campagnolo option campagnolo 11,12 and 13 speed cassettes tubeless ready yes, 2 way fit tyre compatibility standard clincher and tubeless clincher brake type disc brake brake disc rotor mount centerlock spoke pattern front front specific elliptical aero cross section, spaced in groups of three through the g3 system rear 24 steel spokes in the rear elliptical aero cross section, spaced in groups of three through the g3 system the 24 spoke elliptical cross section results in a far superior rolling resistance wheel structure enables reducing energy dissipation, transferring all the energy produced by the cyclist to the asphalt campagnolo's rideability is enhanced by the 45mm profile, despite the aerodynamic design of the rim streamlined central hub section decreases the frontal area of the component and specially designed flanges favour airflow detachment ideal for riding on hilly routes included 35mm tubeless valves, 35mm valve extenders, rim tapes, bushing to reduce the size of the valve hole, 2 composite tyre levers, user manual weight 1520gbuy campagnolo wheels tyres from chain reaction cycles, the world's largest online bike store.