Cervelo

S5 Dura-Ace Di2 Road Bike

What Our Gearhead® Experts Are Saying:

"The S5 Dura-Ace Di2 is engineered for riders who demand every aerodynamic advantage. The deep-section Reserve wheels, asymmetric seat tube, and one-piece cockpit deliver measurable speed gains. Shimano’s flagship Di2 groupset ensures crisp, reliable shifting, while the dual-sided power meter is a big plus for data-driven training."

Cervélo’s S5 Dura-Ace Di2 is the aero road platform that sets the standard for speed, efficiency, and integration in the modern peloton. The S5’s carbon frame is sculpted for maximum aerodynamic efficiency, with a dramatically deepened head tube and fork legs that work in tandem with the signature V-stem and one-piece HB19 carbon bar. This not only reduces drag at the front of the bike, but also enhances steering precision and stability at high speeds. The “Plus-Four” bar concept narrows the hoods for a more aero body position while maintaining width in the drops for confident sprints and descents—all fully UCI-legal.

The Reserve 57|64 Turbulent Aero wheelset, co-developed by Cervélo and Reserve, is specifically tuned for the S5’s asymmetric seat tube, ensuring smooth airflow across the entire chassis. These wheels are not only 3 Watts faster than the previous generation but also maintain impressive stability in crosswinds, making the S5 a weapon in any racing scenario. The frame’s integration extends to the front and rear Cervélo accessory mounts, keeping computers and essentials seamlessly in place without disrupting the bike’s aerodynamic profile.

Shimano’s Dura-Ace Di2 12-speed drivetrain provides lightning-fast, wireless shifting and is paired with a dual-sided power meter for precise training and racing feedback. The Ceramic Speed bottom bracket and carbon seatpost maximize power transfer and ride quality, while the Selle Italia NOVUS BOOST EVO SuperFlow Carbon saddle ensures comfort for hours in the saddle. Every detail, from the aero thru axles to the CL900 rotors, is engineered for uncompromising speed and performance. The S5 Dura-Ace Di2 isn’t just the fastest S5 yet—it’s a benchmark for what an aero road bike can be.

Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.