Cut through the wind. The DURA-ACE WH-R9370-C99-TL-F front wheel is engineered to maximize aerodynamic efficiency for time trials and triathlons. The 99 mm-deep rim and aero-focused carbon spoke profile, combined with a 16-spoke configuration enabled by the deep rim, drastically reduce drag. The result is elite aero efficiency at high cruising speeds and smoother pacing, providing strong support for maintaining speed in TT and triathlon scenarios.
Cut through the wind. The DURA-ACE WH-R9370-C99-TL-F front wheel is engineered to maximize aerodynamic efficiency for time trials and triathlons. The 99 mm-deep rim and aero-focused carbon spoke profile, combined with a 16-spoke configuration enabled by the deep rim, drastically reduce drag. The result is elite aero efficiency at high cruising speeds and smoother pacing, providing strong support for maintaining speed in TT and triathlon scenarios.
FEATURE
Rim depth: 99 mm
FEATURE
Wheel weight: 788 g
FEATURE
Designed with 28-30C tires in mind: 23 mm internal rim width lowers rolling resistance and preserves tire stiffness
FEATURE
This is the most aerodynamic carbon rim in SHIMANO wheel history, based on more than 200 million shape simulations
FEATURE
Super-aero carbon spokes: 5.2 mm wide and 0.8 mm thick aero spokes minimize aerodynamic drag
FEATURE
16-spoke pattern: Enabled by the ultra-tall rim height to minimize aerodynamic drag
FEATURE
Cup & Cone bearings: Excellent serviceability and precise adjustment deliver both speed and durability
