Preferred by pro teams and expert bike shops, cup & cone bearing let mechanics fine-tune each bike to its absolute best. This is why DURA-ACE, built for racing at the highest level, purposefully adopts this construction.
Our cup & cone bearing design sits at the heart of our high-performance wheels because it delivers what performance riders value ride after ride: smooth rolling under real-world cornering and sprint loads, long-term serviceability, and the ability to keep everything precisely adjusted.
DURA-ACE R9300 wheels feature improved waterproof sealing and replaceable bearings for full serviceability. For a wheelset that feels fresh. Not just when it's new, but season after season.
