2026 Cervelo S5 Ultegra Di2
Speed redefined. The Cervelo S5 Ultegra Di2 Road Bike has evolved to be even more aerodynamic, slicing through the wind with refined front-end shaping and the sleek integration of asymmetric seat tube and rear wheel profiles. The result? A gain of 6.3 watts over its predecessor - extra power in reserve for launching a breakaway or delivering a decisive sprint finish. It’s not just quicker, it’s lighter too, shedding 124 grams for added efficiency when the gradient kicks up. While it’s faster and leaner, the S5 still delivers the precise handling, stability, and razor-sharp responsiveness that riders love. This is the S5, reimagined for those who love speed and ride on the edge.
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 nowa 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
Technical Specification
| Frame | Cervelo S5 All-Carbon, TrueAero tube profiles, integrated head tube to fork configuration, integrated headset 1” x 1-3/8”, 12x142mm ( M12x1.0mm, 169mm length thru-axle) |
| Fork | Cervelo All-Carbon, tapered Bayonet S5 fork, external head tube nose section, 12x100mm thru-axle (M12x1.5mm, 122mm length) |
| Headset | FSA SL IS2 1-1/8, 36° x 45° / 1-3/8, 36° x 45° |
| Bottom Bracket | FSA, BBright thread together for 24mm spindle |
| Handlebar and Stem | Cervélo HB19 Carbon one-piece cockpit |
| Bar Tape | Cervelo bar tape |
| Front Brake | Shimano Ultegra hydraulic disc, with 160mm Shimano CL800 Centerlock Disc |
| Rear Brake | Shimano Ultegra hydraulic disc, with 160mm Shimano CL800 Centerlock Disc |
| Brake and Shift Levers | Shimano Ultegra, R8170 |
| Front Derailleur | Shimano Ultegra, R8150 |
| Rear Derailleur | Shimano Ultegra, R8150 |
| Chain | Shimano M8100 |
| Cassette | Shimano Ultegra, R8100, 11-34T, 12-Speed |
| Crankset | Shimano Ultegra, R8100, 52/36T |
| Front Wheel | Reserve 57TA, DT Swiss 180 DICUT, 12x100mm, 24H, centerlock, tube less compatible |
| Rear Wheel | Reserve 64TA, DT Swiss 180 DICUT, 12x142mm, HG freehub 24H, center lock, tubeless compatible |
| Front Tyre | Vittoria Corsa Pro TLR G2.0 700x29mm |
| Rear Tyre | Vittoria Corsa Pro TLR G2.0 700x29mm |
| Saddle | Selle Italia NOVUS BOOST EVO SuperFlow Ti |
| Seatpost | Cervélo SP34 Carbon |
| Powermeter | 4iiii Precision Pro, GEN3+ Dual Sided |
| Pedals | Available to be purchased separately |
| Accessories | Cervélo Front Computer/Accessory Mount 887, Cervélo Rear Accessory Mount |
