Reserve 57-64 wheels: Co-developed for optimal aerodynamics and stability, delivering up to 6.3% more power transfer
One-piece handlebar stem (HB19): Enhances aerodynamics and stability for advanced riding positions
All carbon frame and fork: Reduces weight while maintaining strength and handling
Summarized by Shop
Cervélo S5 Ultegra Di2 PURE SPEED The S5 is a sport-wide benchmark for speed and aerodynamic efficiency—with the race results to back it up. From Wout van Aert winning the Green Jersey by the biggest margin of victory in modern history, to Simon Yates riding himself into the maglia rosa, S5’s iconic V-stem and bayonet fork are a fixture at