Your top speed is out there. Find it with the C60. The WH-R9370-C60-TL is optimized for aerodynamic performance in sprinting and sustained high-speed cruising. A 60 mm-deep rim reduces drag, improving efficiency at speed. Carbon spokes, combined with a dedicated front/rear layout and a reinforced rear wheel, deliver reliable power transfer and stable behavior under high loads. Updated rim layup and hub structure keep overall system weight appropriate, delivering the speed retention needed from the jump of a sprint through long, fast sections.
New cup‑and‑cone bearing design remains at the heart of DURA‑ACE because it delivers what performance riders value ride after ride: smooth rolling under real-world cornering and sprint loads, long-term durability, and the ability to keep everything precisely adjusted.
The result is a wheelset that stays smooth, reliable, and confidence‑inspiring. Not just when it’s new, but season after season, with new waterproof sealing to keep performance consistent in all conditions.
The R9300 DURA‑ACE cup‑and‑cone system is fully serviceable, allowing the bearings to be removed and maintained individually. Instead of replacing the entire hub, worn components can be refreshed as needed, helping preserve performance and extend the life of the wheel.
