
Ultra-Aero SL R Dura Ace Di2
Engineered for elite speed, with an advanced aero carbon frameset and cockpit. Zipp carbon wheels and Shimano Dura-Ace Di2 provide pro-level precision and maximum aerodynamic efficiency.
30-day home test ride on bikes*

ULTRA-AERO SL R
When being fast isn’t fast enough! Dominate the straight line, defeat the wind, and experience exhilaration like never before!

Ride faster with a handlebar engineered to control airflow around both bike and rider. The ULTRA-AERO cockpit uses wake-generating structures to create a Drag Reduction Zone, reducing resistance and delivering a proven 2.1% drag reduction compared to the already optimised RI-2 integrated cockpit.

A cleaner front end improves airflow and reduces drag. Stealth disc brake mounts position the calipers inboard of the fork profile, helping maintain smooth airflow across the front of the bike while preserving the clean aesthetic of a modern aero machine.

Maintain efficiency with tube shapes refined through CFD, wind tunnel and real-world testing. The extended headtube profile and flared downtube improve airflow across the frame while increasing stiffness around the bottom bracket for efficient power transfer.

Hold speed with a front end designed as a single aerodynamic system. The fork, headtube and handlebars work together to manage airflow across a wide range of yaw angles, delivering measurable aerodynamic gains in real-world crosswinds.

Reduce turbulence behind the rider with a truncated airfoil seat tube and aerodynamically shaped seat stays that follow the rear wheel profile. This design improves airflow across the rear of the bike while maintaining excellent lateral stiffness.

Watt-saving gains achieved across all areas of the frameset, the ULTRA-AERO SL R has been optimised to perform in real-world conditions, specifically around 5-10° of YAW, to simulate the crosswinds commonly experienced by a cyclist. Every aspect of this pioneering aero bike is engineered to slice through the air with class-leading efficiency and scalpel-like precision.

Engineered for elite speed, with an advanced aero carbon frameset and cockpit. Zipp carbon wheels and Shimano Dura-Ace Di2 provide pro-level precision and maximum aerodynamic efficiency.

Aero-enhanced carbon frame, forks and integrated cockpit. Mavic carbon wheels and Shimano Ultegra Di2 offer race-ready responsiveness and seamless electronic shifting for serious aero gains.

Aerodynamically refined carbon frame, forks and handlebars. Mavic alloy wheels and Shimano 105 Di2 deliver smooth, precise electronic shifting for speed-focused performance at an accessible level.
"A trailblazer as a pure aero bike that is focused solely on speed."
"An exceptionally fast and focused aero road bike."
To help you select the correct size, please find your height below. The graphic below illustrates our recommendations, ensuring that the size you order will fit you perfectly.
For more information on why choosing the right bike size is important, please visit our Bike Sizing page, or learn more about Bike Fitting.
5'3 - 5'5
160 - 165cm
5'5 - 5'7
165 - 170cm
5'7 - 5'10
170 - 178cm
5'10 - 6'1
178 - 185cm
6'1 - 6'3
185 - 191cm

Choose from millions of colour combinations with Custom Colour available on this bike.

Wind-tunnel optimised ULTRA aero bars engineered to cut drag, control airflow and maximise race-day speed, delivering pro-level aerodynamic advantage without compromising your comfort or control.



The ULTRA-AERO SL R is available to order on cycle to work schemes.
We accept all major cycle to work scheme vouchers


When being fast, just isn’t fast enough! Faster in the wind tunnel, faster on the road, the Ultra-Aero SL is designed to dominate, defeat the wind and make your fastest rides faster than ever before.
