Ultra-Aero SL R

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.

Based on the drag savings demonstrated in the Wind Tunnel and further evidenced in Real World testing, when riding the Ultra-Aero SL R, Enthusiast riders* would achieve on average a 75.1 second saving over 40 km and 61.4 seconds for Pros* *.

*Enthusiast rider = based on a test speed of 22mph. * * Pro rider = based on a test speed of 29mph. Time savings calculated from Drag savings in real world and wind tunnel comparison testing. See p.19/20 in R&D Paper for results.

Benchmarked against the optimised and race-proven Endurance SL R, tested with bike and rider, from CFD to wind tunnel and the real world. Resulting in a bike with significant performance gains, delivering an average 69.2 seconds advantage over 40 kms across a full YAW sweep, up to 20°.

Visit our dedicated page to find out more about our research and development process

The Ultra-Aero handlebar is a groundbreaking innovation engineered for seamless bike and rider interaction. Every aspect of its design is meticulously optimised to control airflow upstream, delivering unmatched aerodynamics, ergonomic excellence, and flawless component integration. Traditional handlebars have long been constrained by industry-standard brake lever designs, but the Ultra-Aero shatters these limitations. By eliminating this constraint, its wake-generating structure creates a Drag Reduction Zone (DRZ), strategically positioning the rider’s legs to minimise resistance. The result? A proven net drag reduction of 2.1% for both bike and rider—translating to a game-changing 23.2-second advantage over a full YAW sweep when compared to the already aerodynamically optimised RI-2 integrated cockpit.

The industry-leading Ultra-Aero carbon integrated cockpit achieves unmatched aerodynamic integration through innovation. Working as a holistic package with the headtube and forks, the handlebars work to manage airflow upstream of the rider. By adding wake generators to the underside of the bars, vortexes are directed around the rider to create a drag reduction zone, resulting in a net drag reduction of 2.1% for both bike and rider. Low in weight and offering stealth cable routing, the super-stiff carbon monocoque handlebar system is ergonomically and aerodynamically optimised for comfort and performance, without significant penalty when riding on the hoods.

The head tube area has been carefully optimised to ensure aerodynamic performance, torsional stiffness and compatibility with internal cable routing. Extending the trailing edge and optimising where it transitions into the top tube demonstrates consistent performance gains that widen to 1.5% at 10° of YAW.

The optimised and truncated seat tube profile conforms to the curvature of the rear wheel to shield the leading edge from the wind and significantly enhance aerodynamic performance by reducing turbulence.

The Ultra-Aero SL R is available to order on cycle to work schemes.

We accept all major cycle to work scheme vouchers

Built for speed, the Ultra-Aero SL R/SL is a superfast aero bike that offers everyone from the everyday road rider to pro racers a significant performance advantage in their pursuit of speed. Its advanced aerodynamic frame and forks, optimised for outright speed gives you the power to dominate everywhere, from bunch sprints to alpine climbs or lone breakaways.

Read more about the development of the Ultra-Aero range