Every model in the C-Series, including the C3 2012 Road Bike is so radically efficient that, on average, the complex engineering of these bikes reduces aero watts by an astounding 20.4 watts compared to a standard, non-aero road bike. That's an easy 16% advantage across all yaw angles and the aero equivalent of an expensive set of race wheels - minus, of course, the expense. All models feature BB30 technology, a Zero-Stack headset system and 1.125" x 1.5" tapered steerer fork for maximum performance.