Designed for fast races and modern tire widths, the ULTEGRA C60 wheelset features the same full carbon rim profile as its DURA-ACE counterpart, but has a hub compatible with 11- and 12-speed cassettes. When aerodynamics are crucial, the ULTEGRA R8170 C60 wheelset impresses with its full carbon rim featuring a 21 mm inner width and compatibility with tubeless tires.