Campagnolo's H.U.L.C. construction—Handmade Ultra-Light Carbon—defines the rim manufacturing process. The approach optimizes the ratio of carbon fiber to resin, reducing weight while maintaining the stiffness and impact resistance that race wheels require. Unidirectional carbon layup distributes mechanical loads evenly throughout the structure, eliminating stress concentration points that could initiate fatigue over thousands of kilometers. The C-LUX finish eliminates lacquer coatings entirely, saving weight while creating a surface smooth enough to improve tubeless tire seating.

The 2-Way Fit rim profile supports both tubeless and traditional clincher setups without requiring rim tape. Campagnolo achieves this through sealed internal construction that eliminates spoke nipple holes on the rim bed—the same approach used across the brand's premium wheel range. The design creates an airtight chamber for tubeless operation while removing potential stress risers from the rim structure. For riders who prefer tubes or need to install one after a mid-ride puncture, the same rim works perfectly with standard clinchers.

G3 spoke geometry arranges 24 aero-elliptical steel spokes per wheel in groups of three, using a 2:1 ratio that places twice as many spokes on the loaded side of each hub. The front wheel concentrates spokes on the disc brake rotor side where braking forces demand structural support. The rear wheel places additional spokes on the cassette side where pedaling loads concentrate. This asymmetric pattern achieves balanced tension across all spokes rather than forcing some to run slack while others approach their elastic limits—the result is a wheel that responds precisely to inputs and maintains trueness longer than symmetrically laced alternatives.

Aluminum hub construction keeps the Bora WTO accessible while maintaining the structural integrity that race conditions demand. The monolithic hub body design eliminates joints and seams that could introduce flex or serve as failure points. Campagnolo's USB cup-and-cone bearing system provides smooth rotation with the adjustability that allows precise preload setting and straightforward maintenance—you can refresh the bearings with basic tools rather than pressing out sealed cartridges. Hub spacing follows current standards: 12x100mm front and 12x142mm rear with aluminum thru-axles.

The N3W freehub body accepts Campagnolo 11, 12, and 13-speed cassettes, including configurations with 9 and 10-tooth starting sprockets. An included adapter ring provides compatibility with cassettes that begin at 11 teeth. Alternative freehub options cover Shimano HG11 and SRAM XDR drivetrains, ensuring the wheelset integrates with essentially any modern road groupset. Center Lock rotor compatibility completes the interface standardization.

Hand assembly by dedicated Campagnolo technicians means each wheel receives individual attention during building and tensioning. Electronic verification instruments check spoke tension balance and trueness before any wheel leaves the facility. The process delivers consistency that automated production struggles to match—spoke tensions stay balanced, lateral and radial runout remain within tight tolerances, and the wheels arrive ready to install rather than requiring immediate shop attention. This manufacturing approach costs more than mass production but reflects Campagnolo's position that race wheels deserve race-level quality control.

At 1,405 grams for the pair, the Bora WTO 45 sits in territory that works for aggressive riding across varied terrain. The weight represents a reduction of over 100 grams compared to the previous generation, achieved through material optimization and refinements to the hub and rim structures. For riders who prioritize the ultimate in bearing performance, the Bora Ultra WTO line offers CULT ceramic bearings and carbon hub construction at a higher price point. The standard Bora WTO delivers the same rim technology, spoke geometry, and build quality while keeping the investment more accessible.

The included accessory kit covers tubeless setup requirements: valves, valve reducer bushings, and composite tire levers. AFS disc rings and transport bags complete the package. These details acknowledge that wheel buyers expect a complete solution ready for installation rather than a parts list requiring additional purchases before the first ride.