Aerodynamic Efficiency When aerodynamics take priority, ULTEGRA C60 wheels deliver. A deep-section tubeless carbon rim paired with smooth, fast-rolling hubs is designed to reduce drag and maintain speed, making them ideal for high-speed road riding, sustained efforts, and race-focused setups. Features 60 mm Carbon Rim Profile: Deep-section full-carbon rim improves aerodynamic efficiency at higher speeds 21 mm Internal Rim Width: Supports a wide range of road tire sizes for stable handling and efficient rolling DURA-ACE-Derived Rim Shape: Shared rim profile with R9200 DURA-ACE wheels for proven aerodynamic performance Smooth Cup-and-Cone Hubs: Precision cup-and-cone bearings deliver efficient rolling and long-term durability Drivetrain Compatibility: Compatible with both 11- and 12-speed road cassettes Aerodynamic Advantage The 60 mm carbon rim is shaped to reduce aerodynamic drag during high-speed riding and sustained efforts. Designed for road racing and fast group rides, it helps maintain momentum when speed and efficiency matter most. Fast, Efficient Rolling ULTEGRA hubs use a refined cup-and-cone bearing system to deliver smooth, efficient rolling under load. The result is a connected road feel that supports long efforts, steady pacing, and confident performance at speed.