Shimano's Dura Ace WH-R9100 C40 Clincher Wheelset utilizes a lightweight carbon laminate over ultra-thin alloy rims to balance stiffness, durability, and ride quality, and the hybrid angular cup and cone bearings ensure they roll silky smooth while only requiring a 5 mm hex key for adjustments. OPTBAL 2:1 rear spoke lacing uses twice as many spokes on the drive side to even out spoke tension for a stronger wheel that stays true.
Compatible with Shimano/SRAM 9/10/11-speed cassettes. Includes quick release skewers.
35 mm deep, 20.8 mm external width
16 / 21 front / rear spoke count
Carbon laminate rim
Lightweight titanium freehub body
OPTBAL spoke system minimizes weight and adds rigidity
Digital Cone Bearing Adjustment system
Balanced low inertia & aerodynamics
Claimed weight: 674 g / front, 834 g / rear, 1508 g / total