Cervélo S5 Ultegra Di2 five black 2027: the aero road bike built for performance

A Di2 aerodynamic bike to combine precision, speed and efficiency

THE Cervélo S5 Ultegra Di2 five black 2027 The S5 is a carbon aerodynamic bike designed for pure speed, fast races, sprints, and high-intensity rides. A benchmark in the world of aero bikes, the S5 retains its racing DNA while gaining in efficiency, lightness, and integration.

This new generation of the S5 is announced as being 6.3 watts faster than its predecessor and 124 grams lighter. The gains are concentrated primarily at the front of the bike, with a deeper bayonet fork, an optimized head tube, and a new Cervélo HB19 Carbon one-piece cockpit, designed to improve the bike's aerodynamics and the rider's position.

In this Ultegra Di2 version, the Cervélo S5 receives an electronic transmission Shimano Ultegra R8100/R8170 12-speed, a dual-sided Precision Pro GEN3+ 4iiii power meter, Reserve 57TA / 64TA carbon wheels with hubs DT Swiss 240 Dicut and tires Vittoria Corsa Pro TLR G2.0 in 700x29c. A high-end, precise and high-performance build, designed for fast riding with maximum efficiency.

Frame

S5 carbon frame geared towards pure speed

The Cervélo S5 2027 is designed to maximize speed on the road, whether racing, sprinting, attacking, or on rolling terrain. It retains the stability, precision, and handling that the S5 is known for, while further improving its aerodynamic efficiency.

Faster than the previous generation

The new S5 is advertised as being 6.3 watts faster than its predecessor. The aerodynamic gains come mainly from the front of the bike, with a significantly redesigned fork, head tube, and cockpit.

Lighter despite aerodynamic optimization

Despite deeper profiles and increased surface area, the new S5 is claimed to be 124 grams lighter than the previous generation. Cervélo has optimized the carbon layup and components to improve the entire system.

Cervélo S5 bayonet fork

The Cervélo All-Carbon Bayonet S5 Fork directly contributes to the bike's aerodynamic performance. Its deep, integrated design allows for better management of airflow at the front, a crucial area for reducing drag.

Aerodynamics

A bicycle developed to reduce drag

The S5 is a Cervélo benchmark in terms of aerodynamics. The frame shapes, bayonet fork, monobloc cockpit and wheel integration are designed to limit air resistance at high speed.

Before the extensively reworked bicycle

The fork legs and head tube have been significantly deepened to maximize aerodynamic gains. This optimized frontal area plays a major role in the overall performance of the new S5.

Integrated asymmetric profiles

The integration of asymmetrical seat tube and rear wheel profiles contributes to aerodynamic gains. The goal is to promote smoother airflow around the frame/rear wheel assembly.

Reserve 57TA / 64TA wheels developed for the S5

The Reserve 57TA front and 64TA rear wheels were co-developed by Reserve and Cervélo for the new S5. Their Turbulent Aero design is intended to work with the frame and optimize the overall performance of the bike.

Cockpit

Cervelo HB19 Carbon one-piece cockpit

The Cervélo S5 Ultegra Di2 is equipped with the Cervélo HB19 Carbon one-piece cockpit. It significantly contributes to the bike's aerodynamic gains, while providing a clean, modern, and high-end integration.

Plus-Four Concept

The HB19 handlebar uses the Plus-Four concept: the width at the hoods is 4 cm narrower than at the drops. This design allows for a more aerodynamic position at the hoods, while maintaining stability and control at the drops for descents and sprints.

Optimized size combinations

Cervélo offers several cockpit size combinations to adapt the S5 to the rider's position. The goal is to maintain aerodynamic gains while ensuring a consistent and high-performance fit.

Handlebar sizes according to frame

• Size 48: 36 cm
• Size 51: 38 cm
• Size 54: 40 cm
• Size 56: 40 cm
• Size 58: 40 cm
• Size 61: 40 cm

Stem lengths according to frame

• Size 48: 80 mm
• Size 51: 90 mm
• Size 54: 100 mm
• Size 56: 100 mm
• Size 58: 110 mm
• Size 61: 120 mm

Transmission

Shimano Ultegra Di2 12-speed

This version is equipped with an electronic transmission Shimano Ultegra Di2 12-speed. Gear shifting is fast, smooth and precise, with excellent reliability for racing, intensive training and fast rides.

Crankset Shimano Ultegra R8100 52/36 teeth

The crankset Shimano Ultegra R8100 in 52/36 teeth offers an excellent compromise between speed on the flat, efficiency in rolling sections and effectiveness on hilly courses.

4iiii Precision Pro GEN3+ Dual-Sided Power Sensor

The dual-sided 4iiii Precision Pro GEN3+ power meter accurately measures the effort of both legs. It provides reliable data for structuring training, managing intensity, and analyzing performance.

Cassette Shimano Ultegra 11-34 teeth

The cassette Shimano Ultegra R8100 11-34 teeth 12 speeds offers a versatile range, allowing you to combine speed on the flat, quick accelerations and efficiency on climbs.

Derailleurs Shimano Ultegra R8150

The front and rear derailleurs Shimano Ultegra R8150 ensures precise, fast and smooth electronic gear changes, consistent with the performance level of the S5 Ultegra Di2.

Crank lengths according to frame

• Size 48: 160 mm
• Size 51: 165 mm
• Size 54: 170 mm
• Size 56: 170 mm
• Size 58: 172.5 mm
• Size 61: 172.5 mm

Brakes

Hydraulic braking Shimano Ultegra R8170

The levers Shimano Ultegra R8170 provides control of the Di2 drivetrain and hydraulic brakes. Braking is powerful, progressive, and precise, suitable for high speeds, fast descents, and racing conditions.

Records Shimano CL800 Center Lock

The discs Shimano CL800 Center Lock brakes offer reliable, consistent and efficient braking, perfectly suited to a high-end aerodynamic bike.

Wheels

Reserve 57TA / 64TA carbon wheels

The Cervélo S5 Ultegra Di2 2027 is equipped with Reserve 57TA carbon wheels at the front and Reserve 64TA at the rear. This differentiated setup is designed to optimize speed, aerodynamics, and stability at high speeds.

Developed specifically for the S5

The Reserve 57TA / 64TA wheels were co-developed by Reserve and Cervélo specifically for the new S5. The asymmetry of the rear wheel matches that of the seat tube to promote smoother airflow.

Hubs DT Swiss 240 Dicut

The wheels are mounted with hubs DT Swiss 240 Dicut, renowned for their smoothness, reliability and excellent performance.

Tubeless compatibility

Reserve wheels are tubeless compatible, allowing you to optimize performance, comfort and puncture resistance depending on the chosen setup.

Tires Vittoria Corsa Pro TLR 700x29c

The tires Vittoria Corsa Pro TLR G2.0 in 700x29c offer excellent performance, high-performance grip and a modern section adapted to the aerodynamic wheels of the S5.

Components

Cervélo SP34 carbon seat post

The Cervélo SP34 Carbon seatpost is designed to integrate with the S5 frame and contribute to the overall aerodynamic performance of the bike.

Saddle Fizik Arione R1

The saddle Fizik Arione R1 offers a sporty, lightweight seat adapted for performance road riding, consistent with the racing positioning of the S5.

Case FSA BBright thread together

The bottom bracket FSA BBright thread assembly for 24 mm shaft provides a reliable and consistent solution for transmission Shimano Ultegra Di2.

Accessories included

• Cervelo Rear Accessory Mount
• Cervélo Front Computer / Accessory Mount 266

Technical specifications

Frame and cockpit

• Frame: Cervelo S5 carbon
• Fork: Cervélo All-Carbon, Bayonet S5 Fork
• Integrated handlebar and stem: Cervélo HB19 Carbon
• Seatpost: Cervélo SP34 Carbon
• Saddle: Fizik Arione R1
• Steering system: FSA IS2 1-1/8, 36° x 45° / 1-3/8, 36° x 45°

Transmission and braking

• Gear levers / brakes: Shimano Ultegra R8170
• Crankset: Shimano Ultegra R8100, 52/36 teeth
• Power sensor: 4iiii Precision Pro GEN3+ dual-sided
• Bottom bracket: FSA BBright thread together for 24 mm axle
• Front derailleur: Shimano Ultegra R8150
• Rear derailleur: Shimano Ultegra R8150
• Cassette: Shimano Ultegra R8100, 11-34 teeth, 12 speeds
• Chain : Shimano M8100
• Discs: Shimano CL800 Center Lock

Wheels and tires

• Front wheel: Reserve 57TA, DT Swiss 240 Dicut, 12x100 mm, 24H, Center Lock, tubeless compatible
• Rear wheel: Reserve 64TA, DT Swiss 240 Dicut, 12x142 mm, HG body, 24H, Center Lock, tubeless compatible
• Tires: Vittoria Corsa Pro TLR G2.0, 700x29c

Axes and standards

• Front thru axle: Cervélo Aero Thru Axle Front, M12 x 1.5 mm, length 122 mm
• Rear thru axle: Cervélo Aero Thru Axle Rear, M12 x 1.0 mm, length 169 mm
• Standard case: BBright
• Freewheel body: HG

Seatpost setback according to frame

• Size 48: 0 mm
• Size 51: 0 mm
• Size 54: 0 mm
• Size 56: 0 mm
• Size 58: 0 mm
• Size 61: 15 mm

Weight and sizes

• Advertised weight: 7.76 kg
• Available sizes: 48, 51, 54, 56, 58, 61 cm

Recommended use

• Performance Road
• Road race
• Sprints
• Fast and rolling courses
• Criteria
• Intensive training
• Cyclists looking for a high-end, fast and precise aerodynamic bike

Why choose the Cervélo S5 Ultegra Di2 2027 ?

• Carbon aero bike designed for pure speed
• New frame announced 6.3 watts faster than the previous generation
• 124 grams lighter than its predecessor
• Cervélo S5 bayonet fork optimized for aerodynamics
• New one-piece Cervélo HB19 Carbon cockpit
• Plus-Four concept for a more aerodynamic position at the hoods
• Reserve 57TA / 64TA carbon wheels developed with Cervélo for the S5
• Hubs DT Swiss 240 Dicut
• Electronic transmission Shimano Ultegra Di2 12-speed
• 4iiii Precision Pro GEN3+ Dual-Sided Power Sensor
• Crankset Shimano Ultegra 52/36 teeth
• Cassette Shimano Ultegra 11-34 teeth versatile
• Tires Vittoria Corsa Pro TLR 700x29c
• Saddle Fizik Arione R1
• Advertised weight of 7.76 kg
• High-end, precise and efficient assembly for racing and high speeds

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.