Cervelo S5 Force AXS Five Black 2026

The S5 is a sport-wide benchmark for speed and aerodynamic efficiency—with the race results to back it up. S5’s iconic V-stem and bayonet fork are a fixture at the front of the professional peloton. The new S5 is over 6 Watts faster than its predecessor, 124 grams lighter, and retains the handling, poise, and stability that riders everywhere love. Cervélo and Reserve co-developed the new Reserve 57|64 Turbulent Aero wheels specifically for use in the S5 frame.

The new S5 is 6.3 Watts faster than its predecessor. These gains are realized primarily at the front end of the bike, but the integration of the asymmetric profiles of the seat tube and rear wheel are a significant source as well.

HB19 uses our “Plus-Four” concept, meaning the dimension at the hoods is 4cm narrower than in the drops. This helps riders maintain a more aero body position while their hands are on the hoods, and provides stability in the drops for descending and sprinting.

Despite an increase in surface area, the new S5 is 124 grams lighter than its predecessor. While the increase in fork and head tube depth added weight, we optimized the layup and hardware to make the system lighter.