S5 Dura-Ace Di2 Road Bike 2026

Cervelo S5 Dura-Ace Di2 Road Bike

The fastest just got faster. The Cervelo S5 Dura-Ace Di2 Road Bike is even more streamlined thanks to enhanced aerodynamics around the front end of the bike and via the integration of the asymmetric profiles of the seat tube and rear wheel. The new design delivers an aero improvement of 6.3 watts over its predecessor - more watts in the bank, ready to forge the day's break or surge for the win in a sprint for the finish line. It's not just faster, but it's lighter too, weighing 124 grams less than the previous generation, offering a marginal gain when the road pitches upwards. The much-loved poise, snappy handling and stability remain, making the latest S5 the natural choice for riders who love the thrill of riding at their limits. 

Cervelo x Reserve 57/64 Turbulent Aero

Co-developed by Cervelo and Reserve, the 57/64 Turbulent Aero wheelset has been tuned to work perfectly with this latest iteration of the S5 frame and forks. The asymmetry of the rear wheel matches the seat tube, ensuring smooth and efficient airflow over both. Meanwhile, the added depth of the front rim helps smooth airflow over the wheel in high yaw scenarios. Some 3 watts faster than its predecessor wheelset, the 57/64 still tips the scales at the same weight. 

Cervelo HB19 Carbon one-piece cockpit

The distinctive V-shaped bar and stem remain, but it's now a one-piece setup. The “Plus-Four” concept gives a handlebar design where the width at the hoods is 4cm narrower than at the drops - for example, 38cm at the hoods and 42cm at the drops. This innovative setup promotes a more aerodynamic riding position when your hands are on the hoods, while still offering enhanced control and stability in the drops for sprinting and descending. All handlebar sizes comply fully with UCI regulations, including the most recent updates

HB19 Carbon one-piece cockpit sizing:

• Frame size 48cm: Bar width: 36cm /Stem length: 80mm
• Frame size 51cm: Bar width: 38cm /Stem length: 90mm
• Frame size 54cm: Bar width: 40cm /Stem length: 100mm
• Frame size 56cm: Bar width: 40cm /Stem length: 100mm
• Frame size 58cm: Bar width: 40cm /Stem length: 110mm
• Frame size 61cm: Bar width: 40cm /Stem length: 120mm