When the road flattens out a cyclists biggest enemy is the air slicing through it is key and to do that effectively you need to understand aerodynamics a field mavic has mastered over the years by thinking about the wheel and tire as one complete systemto this end the cxr ultimate 60 c is the fastest clincher wheelset available today thanks to our unique cx01 technology the naca national advisory committee for aerodynamics defined the airfoil profiles that would give us the best possible