Cadex Hookless Rims Cleared: Amaury Capiot's Omloop Crash Explained | Cycling Tech Analysis (2026)

Imagine a professional cyclist, mid-race, suddenly facing a catastrophic wheel failure. That's exactly what happened to Amaury Capiot during the Omloop het Nieuwsblad, leaving many to point fingers at his hookless rims. But here's where it gets controversial: Cadex, the manufacturer, has stepped forward to defend their design, claiming it wasn't the culprit. Instead, they argue that the real issue was the prolonged use of the wheel over punishing cobblestones after an initial puncture.

In a detailed statement, Cadex—a brand owned by Giant and known for its hookless rims—explained that the tire separation was not due to the rim's design. Their investigation, conducted in collaboration with Team Jayco-AlUla, revealed that Capiot continued riding on a flat and damaged rear Cadex Aero Cotton tire over cobblestones, which ultimately led to the rim cracking. This structural failure caused the spokes to displace from the hub, resulting in the wheel's dramatic collapse and the tire completely unseating from the rim. And this is the part most people miss: even under these extreme conditions, Cadex claims the wheel remained stable enough to prevent a crash, showcasing its resilience.

The incident sparked debate, especially after a team spokesperson initially attributed the failure to riding too long on cobbles with a flat tire, as reported by Cyclingnews. But Cadex's statement adds a layer of complexity, emphasizing the role of prolonged stress rather than the rim design itself.

Another intriguing detail: Capiot was using a tire liner, a common addition in tubeless setups for cobbled races, which theoretically allows for safer 'run-flat' riding. However, while the liner remained in place, it couldn't prevent the rim from failing under the extreme conditions. Here’s the kicker: Cadex and Giant don’t officially recommend using tire liners with their products, yet the team chose to do so. Does this mean the liner played a role? Cadex says no, but it’s a point worth discussing.

Capiot’s initial puncture occurred at approximately 47-48 kph, and he continued riding on cobbled sections until the wheel gave out. This raises a thought-provoking question: How much responsibility lies with the rider for continuing on a damaged wheel, and how much with the manufacturer for designing a product that couldn’t withstand such conditions? Cadex’s defense of their design is bold, but it leaves room for debate. What do you think? Is Cadex justified in their claims, or is there more to the story? Let’s hear your thoughts in the comments!

Cadex Hookless Rims Cleared: Amaury Capiot's Omloop Crash Explained | Cycling Tech Analysis (2026)

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