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 Carbon is a cutting-edge aero road bike built for sprinters, breakaway riders, and speed enthusiasts who demand absolute aerodynamic efficiency. Built around Cervélo's redesigned TrueAero carbon frame and iconic Bayonet fork interface, this high-performance machine cuts through crosswinds while transferring every watt of power directly into forward motion. Driven by Shimano's ultra-precise 12-speed Ultegra Di2 electronic drivetrain with an integrated dual-sided 4iiii power meter, deep Reserve 57/64 Turbulent Aero carbon wheels on DT Swiss 180 DICUT hubs, and the sleek HB19 one-piece V-cockpit, it delivers an aggressively fast, ultra-stable, and aerodynamically optimized ride built to dominate fast-paced peloton efforts and solo breakaways.
Pro-Level Aero Features
Redesigned TrueAero Frame: Advanced aerodynamic tube profiles and an integrated Bayonet S5 fork dramatically reduce wind drag, particularly during challenging high yaw crosswind conditions.
Shimano Ultegra Di2 Drivetrain: Lightning-fast 12-speed electronic shifting paired with a factory-installed 4iiii Precision Pro dual-sided power meter for precise training insights.
Reserve 57/64 Aero Wheel System: Co-engineered to complement the S5 frame geometry, utilizing premium DT Swiss 180 DICUT hubs to minimize rolling resistance and crosswind instability.
HB19 Integrated Carbon Cockpit: The iconic V-stem evolved into a sleek single-piece setup featuring a 4cm flare—enabling a narrower, drag-reducing hood position alongside wider drops for control.
Vittoria Corsa Pro 29mm Tires: Perfectly matched to the wider Reserve rim profile to ensure optimal aerodynamic transition, superior cornering grip, and enhanced road compliance.
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.
