Shimano Dura-Ace R9370 Carbon Clincher Disc Wheelset Elevate your time trial and triathlon performance with the Shimano Dura-Ace R9370 C99 & Disc Carbon Clincher Wheelset, the ultimate aerodynamic race setup engineered to slice through the air with unmatched speed. Co-designed and rigorously validated alongside WorldTour athletes and elite triathletes, including Mathieu van der Poel and Kat Matthews, this dedicated system pairs a deep 99mm front rim with a full carbon disc rear to create Shimano's fastest configuration for solo efforts against the clock. Built around modern, high-performance tubeless tyre setups, the system delivers remarkable responsiveness, predictable crosswind stability, and explosive power transfer under intense race conditions. Advanced Aerodynamics and Power Transfer Engineered through extensive computational fluid dynamics and wind-tunnel testing, the C99 front wheel features a wide 35.2mm external profile and 16 Super Aero carbon spokes designed to minimise drag without compromising handling. At the back, the full carbon disc wheel completely eliminates rear turbulence while providing uncompromising structural rigidity for every pedal stroke. Weighing in at a competitive combined weight of just 1779g (792g front, 987g rear), this wheelset delivers lightning-fast acceleration off the line and aids in sustaining blistering momentum over flat and rolling courses. Elite Precision and Long-Term Durability At the core of both wheels lies Shimano's renowned adjustable cup and cone bearing architecture, allowing you to fine-tune rotational torque for buttery-smooth rolling efficiency under extreme riding loads. The updated hub design incorporates replaceable bearing cups, improved waterproof seals, and enhanced serviceability to ensure race-ready durability season after season. Complete with hooked tubeless-ready rims that support lower rolling resistance and superior cornering grip, the Dura-Ace R9370 TT wheelset provides the precise, championship-proven advantage you need to break personal records and dominate the clock.