Giant Propel Advanced SL 2 (2013)

Years of research, development and testing in the wind tunnel and on the roads led to the all-new Propel Advanced SL, the world’s fastest aero road bike. Its wind-slicing new innovations include AeroSystem Shaping technology, the integrated SpeedControl SLR brake system and Contact SLR Aero handlebar. The Advanced SL-grade composite frame, with best-in-class light weight, OverDrive 2 steerer tube for front end stiffness and control, and integrated seatpost for aerodynamics and compliance, help make Propel Advanced SL faster from every angle.