BICI CERVELO S5 ULTEGRA DI2 2026

BICI CERVELO S5 ULTEGRA DI2 2026

The S5 is now an undisputed benchmark in competitive sport when it comes to speed and aerodynamic efficiency. Testimony to this are the numerous results achieved on the most prestigious international stages. From Wout van Aert, who claimed the Green Jersey with the greatest number of wins in modern history, to Simon Yates, who recently won the pink jersey, the iconic V-shaped handlebar and the distinctive fork design of the S5 have become a hallmark among professionals worldwide. The new S5 builds on this heritage of speed and design to evolve into something even faster, more sought-after and distinctive, shedding weight to become an even more powerful ally in the hands of the world's fastest athletes.
The new S5 is over 6 Watts faster than the current version, 124 grams lighter while delivering the same handling, responsiveness and stability that cyclists around the world already value in its predecessor. The most significant changes concern the front end, from which the most meaningful aerodynamic gains originate. The fork blades and headset are more pronounced, while the handlebar and stem are now a single redesigned piece, reviving the V-stem concept but with an even more aerodynamic and fast solution. Cervélo and Reserve have jointly developed the new Reserve 57|64 Turbulent Aero wheels designed and wind-tunnel tested with the bike frame and optimised specifically for use with the new S5.

The integrated one-piece handlebar and stem of the new S5 contribute significantly to improving the bicycle's aerodynamic performance, but such improvements are limited if the rider is not fully comfortable with the bike. We have developed nine different size combinations for the new integrated handlebar, and when purchasing a S5, your authorized Cervélo dealer will help you choose the most suitable handlebar/stem combination for you, at no additional cost.

BICI CERVELO S5 ULTEGRA DI2 2026 KEY FEATURES:

WORD OF ORDER, AERO!

The new S5 is 6.3 Watts faster than the current version (data obtained in a wind tunnel testing at 30 mph). These gains were possible thanks to major improvements mainly in the front of the bicycle, but also thanks to the incredible integration work of the asymmetrical profiles of the seat tube and the rear wheel. Cervélo has long been a leader in the field when it comes to aerodynamics, and, based on tests, the new S5 is at least 5 Watts faster than bikes of our closest competitors.

ONE-PIECE INTEGRATED HANDLEBAR

The new HB19 One-Piece handlebar uses our “Plus-Four” concept, meaning the upper part of the handlebar grip is 4 cm narrower than the lower part (for example, 38 cm/42 cm). This approach helps riders maintain a more aerodynamic body position when hands are in the high grip and provides stability in the low grip when tackling descents and sprints. All handlebar measurements comply with UCI rules, even in light of the latest regulatory changes. The best part? You can replace the handlebar to achieve the desired fit within the first 60 days of ownership. To learn more, read here.

NOT ONLY SPEED, ALSO LIGHTWEIGHT.

Despite the increased aerodynamic surface, the new S5 is 124 grams lighter than the previous model. Although the significant increase in fork and headset size has led to an obvious weight increase, we have optimized the carbon layup and the entire hardware to make the system even lighter.

NEW RESERVE 57|64 TA

The new Reserve 57|64 Turbulent Aero wheelset has been developed jointly by Reserve and Cervélo, designed and optimised in a wind tunnel with the new S5 frame. The asymmetry of the rear wheel matches the seat tube, ensuring a smooth airflow that reduces overall resistance. The new wheelset is 3 Watts faster than the current 52|63 wheels while maintaining the same weight.

THE BIKE IS DELIVERED PRE-ASSEMBLED BY US*

TECHNICAL SPECIFICATIONS

• Frame material: Carbon
• Fork: Cervélo Full-Carbon, Bayonet S5 Fork
• Headset: FSA IS2 1-1/8, 36° x 45° / 1-3/8, 36° x 45°.
• Wheels: Reserve 57/64 DB in carbon
• Shifters: Shimano Ultegra ST-R8150 Di2 12-speed
• Brakes: Shimano Ultegra BR-R8170 hydraulic disc
• Crankset: Shimano Ultegra, R8100, 52/36T.
• Front derailleur: Shimano Ultegra, R8150.
• Rear derailleur: Shimano Ultegra, R8150.
• Cogset: Shimano Ultegra, R8100, 11-34T, 12-Speed.
• Chain: Shimano M8100.
• Handlebar: Cervélo HB19 in carbon.
• Handlebar dimensions: Size 48 - 36cm / Size 51 - 38cm / Size 54 - 40cm / Size 56 - 40cm / Size 58 - 40cm / Size 61 - 40cm.
• Handlebar stem dimensions: Size 48 - 80mm / Size 51 - 90mm / Size 54 - 100mm / Size 56 - 100mm / Size 58 - 110mm / Size 61 - 120mm.
• Saddle: Cervélo SP34 Carbon.
• Seatpost dimensions: 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.
• Tires: Vittoria Corsa Pro TLR G2.0 700x29c.
• Maximum tire width: 34mm.
• Hubs: FSA, BBright thread together for 24mm spindle.
• 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.
• Shifter brake lever: Shimano Ultegra, R8170.
• Crankarm length: Size 48 - 165mm / Size 51 - 165mm / Size 54 - 170mm / Size 56 - 170mm / Size 58 - 172.5mm / Size 61 - 172.5mm.
• Brake Discs: Shimano CL800 Centerlock.
• Power meter: 4iiii Precision Pro, GEN3+ Dual Sided.

*PRO-M STORE OFFERS FREE BICYCLE PRE-ASSEMBLY SERVICE: SEATPOST, FORK, SHIFTER AND BRAKES ARE ALREADY MOUNTED