The mavic cxr ultimate 60 tubular wheelset is designed to flow as a single unit for optimal performance during triathlon time trial and hilly races endorsed by the fastest professional teams and triathletes garmin cervlo katusha the wheel and tyre system works together to limit aerodynamic dragthe naca inspired rim tyre profile increases speed and stability even when cycling in strong side winds lightweight and durable the wheelset is constructed with a 60mm extra wide full carbon rim