A single rear wheel from Campagnolo's Bora Ultra WTO C23 disc range, at 45 mm deep. Ideal for replacing one wheel or building a mixed-depth pair.

Highlights

• 45 mm H.U.L.C. carbon rim, 23 mm internal width
• 2-Way Fit: tubeless without rim tape, or clincher
• CULT ceramic cup-and-cone bearings
• 21 Aero Elliptical spokes, G3 lacing
• Campagnolo N3W freehub body

Rim and aerodynamics

Built with Campagnolo's H.U.L.C. (Handmade Ultra-Light Carbon) process, the drop-shaped C23 rim has a 23 mm internal width and 28.4 mm external width. Aero Mo-Mag hides the self-locking aluminium nipples inside the rim on fibreglass-reinforced polymer seats, so the 2-Way Fit rim bed has no spoke holes and runs tubeless without rim tape. Campagnolo builds the rims with a single joint rather than the usual four.

Hub and build

A 142 mm rear hub with a 12 mm aluminium thru-axle, running CULT ceramic cup-and-cone bearings, laced with Aero Elliptical straight-pull spokes in Campagnolo's G3 pattern and hand-assembled by a Campagnolo technician. Tubeless set-up and cassette and rotor fitting are separate workshop services at Tune Cycles.

Compatibility & fit

Disc brake only. Rear wheel for 12 mm thru-axle frames with 142 mm spacing. The N3W freehub body takes Campagnolo 13-speed cassettes directly. N3W versions come with Campagnolo's N3W adapter, and Campagnolo's N3W compatibility table sets out what's needed to run 11- and 12-speed Campagnolo cassettes. Rotor mounts with an AFS lockring. Campagnolo recommends 700c tyres from 28 to 35 mm. Check tyre and pressure combinations against Campagnolo's rim-tyre-pressure table.