2026 Cervelo S5 Shimano Ultegra Di2 Carbon Aero Road Bike
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Product Description
2026 Cervélo S5 Shimano Ultegra Di2
Speed Redefined. 6.3 Watts Faster. Absolute Stability.
The 2026 Cervélo S5 Shimano Ultegra Di2 is the pinnacle of aero road engineering. This latest iteration has been meticulously re-engineered to be 6.3 watts faster and 124 grams lighter than its predecessor. By integrating asymmetric seat tube profiles with the high-performance Reserve 57/64 wheelset, Cervélo has created a bike that slices through the wind while maintaining the razor-sharp responsiveness and stability that defines the S5 legacy.
Pro-Level Aero Features
- Redesigned TrueAero™ Frame: Advanced tube shaping and a Bayonet S5 fork significantly reduce drag, especially in high yaw wind conditions.
- Shimano Ultegra Di2 Groupset: Ultra-fast electronic shifting combined with a factory-integrated 4iiii Precision Pro Dual Sided power meter.
- Reserve 57/64 Turbulent Aero Wheels: Co-developed to match the frame perfectly, featuring premium DT Swiss 180 DICUT hubs for minimal rolling resistance.
- HB19 Carbon One-Piece Cockpit: The iconic V-stem evolved into a one-piece design with a 4cm flare—narrower at the hoods for aerodynamics and wider at the drops for control.
- Vittoria Corsa Pro 29mm Tires: Optimized for the wider Reserve rims to provide superior grip, comfort, and aerodynamic transition.
Technical Specifications
| Frameset & Cockpit | |
|---|---|
| Frame | Cervélo S5 All-Carbon, TrueAero tube profiles, 12x142mm thru-axle |
| Fork | Cervélo All-Carbon, tapered Bayonet S5 fork, external head tube nose section |
| Headset | FSA SL IS2 1-1/8 x 1-3/8 |
| Handlebar/Stem | Cervélo HB19 Carbon one-piece cockpit |
| Bottom Bracket | FSA, BBright thread together for 24mm spindle |
| Drivetrain & Brakes | |
| Groupset | Shimano Ultegra Di2 R8150/R8170, 24-Speed Electronic |
| Crankset | Shimano Ultegra R8100, 52/36T with 4iiii Precision Pro GEN3+ Power Meter |
| Cassette | Shimano Ultegra R8100, 11-34T, 12-Speed |
| Brakes | Shimano Ultegra Hydraulic Disc with CL800 160mm Rotors |
| Wheels & Components | |
| Wheelset | Reserve 57/64 Turbulent Aero, DT Swiss 180 DICUT Hubs |
| Tyres | Vittoria Corsa Pro TLR G2.0 700x29mm |
| Saddle | Selle Italia NOVUS BOOST EVO SuperFlow Ti |
| Seatpost | Cervélo SP34 Carbon Aero |
HB19 Integrated Cockpit Sizing Guide
| Frame Size | Bar Width (Drops) | Stem Length |
|---|---|---|
| 48cm | 36cm | 80mm |
| 51cm | 38cm | 90mm |
| 54/56cm | 40cm | 100mm |
| 58cm | 40cm | 110mm |
| 61cm | 40cm | 120mm |
Slicing the Competition
The Cervélo S5 is more than just a bike; it’s a technical advantage. The synergy between the Reserve wheels and the S5 frame profiles ensures that airflow remains efficient even in high yaw scenarios. With the Ultegra Di2 groupset providing pro-level shifting speed and the HB19 cockpit optimizing your aerodynamic silhouette, this machine is ready to turn every training ride into a personal best.
