The S5 is an aerodynamic road bike built for the fastest sprinters in the world. It is stiffer and more aerodynamic than ever before, while offering excellent comfort and ride quality. If you live for the exhilaration of going fast, the S5 will give you every possible advantage. The S5 boasts substantial aerodynamic improvements over its predecessor. Full internal cable routing, a custom bar and stem, riding position, and special frame shapes work together to reduce drag and improve aerodynamics. The result: you go faster.