If speed is the ultimate goal, then the Cervelo S5 is the weapon of choice. This bike has long been a staple in the pro peloton, renowned for its cutting-edge aerodynamics, stiffness, and race-winning pedigree. Now, with the Ultegra Di2 groupset, the S5 brings pro-level performance within reach of more riders—delivering a balance of speed, precision, and reliability.
Let’s take a deep dive into what makes the Cervélo S5 one of the most exciting aero road bikes on the market.
Aero design, built for pure speed
Cervélo has never been shy about pushing aerodynamics to the limit, and the latest S5 is the result of relentless wind tunnel testing and real-world feedback from pro riders. Every tube shape, every curve, and every component is designed to minimize drag and maximize efficiency.
- Dropped seat stays help reduce turbulence and improve ride compliance.
- Deep aero tube profiles slice through the wind, giving the bike an unmistakably aggressive stance.
- A fully integrated cockpit keeps cables hidden for a clean, wind-cheating front end.
The result? A bike that just wants to go fast—whether you’re attacking off the front, sprinting for the line, or holding high speeds on long, flat roads.
Shimano Ultegra Di2: Precision shifting, pro level
Paired with Shimano’s 12-speed Ultegra Di2 groupset, the S5 delivers buttery-smooth electronic shifting and rock-solid reliability. Here’s why it’s the perfect match for an aero race bike:
- Crisp, wireless shifting with near-instant response.
- 12-speed gearing for smoother cadence control and better gear jumps.
- Improved braking power with Shimano’s refined hydraulic disc brakes.
Ultegra Di2 gives you all the performance benefits of Dura-Ace, but at a more accessible price—without sacrificing the race-ready precision needed for high-speed riding.
Wheels and tyres: the perfect aero setup?
A bike like the S5 demands a deep-section wheelset, and Cervélo delivers with Reserve 52/63 wheels—designed specifically to complement the aerodynamics of the frame. With a 52mm front and 63mm rear depth, these wheels balance crosswind stability with outright speed.
To keep things rolling fast and smooth, Cervélo specs the bike with 28mm-wide Vittoria Corsa Pro tyres, which hit the sweet spot between low rolling resistance, comfort, and grip.
Who is this bike for?
The Cervélo S5 Ultegra Di2 specis for riders who crave speed, efficiency, and top-tier performance without going full pro-budget. Whether you’re:
A racer looking for every aero advantage on the road
A performance-focused rider who loves fast group rides and solo breakaways
Someone who wants high-end tech and precision shifting without the full Dura-Ace price tag
This bike delivers.
Final thoughts – the ultimate speed machine?
The Cervélo S5 with Ultegra Di2 is one of the most refined aero road bikes available today. With its wind-tunnel-tested frame, race-proven geometry, and world-class componentry, it’s a serious weapon for anyone who wants to go fast.
If you’re looking for a bike that can dominate sprint finishes, hold high speeds effortlessly, and make every watt count, the Cervélo S5 should be at the top of your list. Check out the Cervelo S5 range.
