The 2027 Cervélo S5 Ultegra Di2 is the latest evolution of one of the fastest road bikes ever created. Developed through extensive aerodynamic research and proven at the highest level of professional racing, the new S5 delivers exceptional speed, increased efficiency and refined handling for riders who demand uncompromising performance.

For 2027, Cervélo has further refined the S5 with an even more aerodynamic frame design, a lighter chassis and an updated integrated cockpit that improves both stiffness and rider fit. Every tube profile has been optimised to reduce drag while maintaining the responsive handling and confidence-inspiring stability that have made the S5 a favourite for sprint finishes, breakaways and high-speed racing.

Equipped with Shimano's renowned Ultegra Di2 12-speed electronic groupset, the S5 provides lightning-fast wireless shifting with the reliability and precision expected from one of the world's leading drivetrains. Powerful hydraulic disc brakes deliver confident braking performance in all weather conditions, while the latest carbon wheelset complements the bike's aerodynamic design for outstanding acceleration and efficiency.

Despite its pure racing focus, the S5 remains practical for modern road riding. Clearance for tyres up to 34 mm allows riders to benefit from wider tyres for increased comfort, improved grip and lower rolling resistance without compromising aerodynamic performance.

Whether you're competing at the highest level, chasing personal bests or simply looking for one of the fastest road bikes available, the 2027 Cervélo S5 Ultegra Di2 represents the pinnacle of aerodynamic road bike engineering.

Key Features

• Latest-generation Cervélo S5 carbon aero frame and fork
• Aerodynamically optimised frame with reduced drag
• Lightweight carbon construction for exceptional stiffness-to-weight ratio
• Shimano Ultegra Di2 R8170 2×12-speed electronic groupset
• Shimano Ultegra hydraulic disc brakes
• Fully integrated carbon one-piece cockpit
• Internal cable routing for maximum aerodynamic efficiency
• Tubeless-ready carbon wheelset
• Tyre clearance up to 34 mm
• BBright T47 bottom bracket platform
• Race-proven geometry developed for professional competition

Technical Specifications

• Frame: Cervélo S5 Carbon
• Fork: Cervélo All-Carbon S5 Fork
• Groupset: Shimano Ultegra Di2 R8170, 2×12-speed
• Shifters: Shimano Ultegra Di2 ST-R8170
• Front Derailleur: Shimano Ultegra Di2 FD-R8150
• Rear Derailleur: Shimano Ultegra Di2 RD-R8150
• Crankset: Shimano Ultegra FC-R8100
• Cassette: Shimano Ultegra CS-R8101 11-34T
• Chain: Shimano CN-M8100 12-speed
• Brakes: Shimano Ultegra Hydraulic Disc
• Wheelset: Carbon tubeless-ready wheelset
• Tyres: High-performance tubeless-ready road tyres
• Handlebar/Stem: Cervélo Integrated Carbon Cockpit
• Seatpost: Cervélo Carbon Aero Seatpost
• Bottom Bracket: BBright T47
• Axles: 12 × 100 mm Front / 12 × 142 mm Rear
• Maximum Tyre Clearance: 34 mm