Cervélo S5 Ultegra Di2 2026
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Cervélo S5 Ultegra Di2 2026
Product Details
The Cervélo S5 Ultegra Di2 is an aerodynamic road bike designed for speed, efficiency, and precise handling. Proven in competition by riders like Wout van Aert and Simon Yates, the S5 delivers exceptional performance across sprints, climbs, and technical descents.
The latest S5 is 6.3 watts faster and 124 grams lighter than its predecessor, thanks to optimized aerodynamics and a refined carbon layup. Updates include a one-piece V-Stem cockpit and deeper fork and headtube profiles, reducing drag and improving overall ride quality. The sculpted Hollow V-Stem, designed with Cervélo’s Plus-Four concept, narrows the hoods by 4 cm relative to the drops, offering an aggressive aero position without sacrificing control. Fully UCI-compliant, this design supports confident riding in all conditions.
Paired with the Reserve 57|64 Aero wheelset, engineered to complement the frame’s profile, the S5 achieves smoother airflow and gains an additional 3 watts over previous designs without added weight. The integrated frame and wheel system is purpose-built for racers and performance-focused riders seeking precision and speed.
Key Features
- Frame - Cervélo All-Carbon Frame with Bayonet S5 Fork
- Drivetrain- Shimano Ultegra R8100 Di2 with 4iiii Precision Pro GEN3+ Dual-Sided Powermeter
- Wheelset- Reserve 57|64TA Carbon Wheels with DT Swiss 240 Hubs
| Component | Specification |
|---|---|
| Sizes | 48cm, 51cm, 54cm, 56cm, 58cm, 61cm |
| Fork | Cervélo All-Carbon, Bayonet S5 Fork |
| 1-piece Handlebar/Stem | Cervélo HB19 Carbon |
| Handlebar Sizing |
Size 48 - 36cm Size 51 - 38cm Size 54 - 40cm Size 56 - 40cm Size 58 - 40cm Size 61 - 40cm |
| Stem Sizing |
Size 48 - 80mm Size 51 - 90mm Size 54 - 100mm Size 56 - 100mm Size 58 - 110mm Size 61 - 120mm |
| Seatpost | Cervélo SP34 Carbon |
| Seatpost Sizing |
Size 48 - 0mm Size 51 - 0mm Size 54 - 0mm Size 56 - 0mm Size 58 - 15mm Size 61 - 15mm |
| Saddle | Selle Italia NOVUS BOOST EVO SuperFlow Ti |
| Bottom Bracket | FSA, BBright thread together for 24mm spindle |
| Headset | FSA IS2 1-1/8, 36° x 45° / 1-3/8, 36° x 45° |
| Front Thru Axle | Cervélo Aero Thru Axle Front, M12x1.5mm, 122mm length |
| Rear Thru Axle | Cervélo Aero Thru Axle Rear, M12x1.0mm, 169mm length |
| Front Wheel | Reserve 57TA, DT Swiss 240, 12x100mm, 24H, centerlock, tubeless compatible |
| Rear Wheel | Reserve 64TA, DT Swiss 240, 12x142mm, HG freehub, 24H, centerlock, tubeless compatible |
| Tires | Vittoria Corsa Pro TLR G2.0 700x29c |
| Shifter/Brake Levers | Shimano Ultegra, R8170 |
| Crankset | Shimano Ultegra, R8100, 52/36T |
| Power Meter | 4iiii Precision Pro, GEN3+ Dual Sided |
| Crank Sizing |
Size 48 - 165mm Size 51 - 165mm Size 54 - 170mm Size 56 - 170mm Size 58 - 172.5mm Size 61 - 172.5mm |
| Chain | Shimano M8100 |
| Cassette | Shimano Ultegra, R8100, 11-34T, 12-Speed |
| Front Derailleur | Shimano Ultegra, R8150 |
| Rear Derailleur | Shimano Ultegra, R8150 |
| Brake Rotors | Shimano CL800 Centerlock |
| Accessories |
- Cervélo Front Computer/Accessory Mount 887 - Cervélo Rear Accessory Mount |
| Max Tire Width (Actual) | 34mm |
| Measurement | 48 | 51 | 54 | 56 | 58 |
|---|---|---|---|---|---|
| Reach (mm) | 367 | 376 | 384 | 392 | 401 |
| Stack (mm) | 496 | 519 | 542 | 565 | 588 |
| Head Tube Angle | 71° | 72° | 73° | 73.5° | 73.5° |
| Front Center (mm) | 579 | 580 | 581 | 588 | 604 |
| Bottom Bracket Drop (mm) | 72.5 | 72.5 | 70 | 70 | 67.5 |
| Head Tube Length (mm) | 69 | 87 | 109 | 130 | 157 |
| Top Tube Length (mm) | 520 | 535 | 550 | 565 | 581 |
| Seat Tube Angle | 73° | 73° | 73° | 73° | 73° |
| Standover Height (mm) | 707.5 | 729.2 | 747.4 | 775.3 | 805.9 |
| Trail (mm) | 57.1 | 57 | 57.1 | 57 | 57 |
| Wheel Size | 700C | 700C | 700C | 700C | 700C |
| Fork Offset (mm) | 58 | 52 | 46 | 43 | 43 |
| Wheelbase (mm) | 973 | 974 | 975 | 982 | 999 |
| Chainstay Length (mm) | 405 | 405 | 405 | 405 | 405 |