Choose from millions of colour combinations, with CustomColour, available on this bike.
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Choose from millions of colour combinations, with CustomColour, available on this bike. Find the configurator under the 'Customise' button after you have selected your size.
Watt-saving gains achieved across all areas of the frameset, the Ultra SLR 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 SL R, Enthusiast riders* would achieve on average a 75.1 second saving over 40km and 61.4 seconds for Pro's**.
*Enthusiast rider = based on test speed of 22mph. **Pro rider = based on 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 40kms across a full YAW sweep, up to 20°.
Visit our dedicated page to find out more about our research and development process
STAT: Quoted as an average between 5-10 degrees of YAW.
The innovative Ultra Aero handlebar has been designed entirely around bike and rider interaction. Its design has been optimised to ensure that every element of the handlebar manages airflow upstream of the rider, encapsulating ergonomics, component integration as well as groundbreaking aerodynamics. The industry standard brake lever design previously limited all handlebars to a conventional shape. By dispensing with this requirement, the Ultra Aero bars wake generating design creates a drag reduction zone (DRZ) for the rider's legs to sit within, resulting in a net drag reduction of around 2.1% for both bike and rider. This translates to an average 23.2-second advantage over a full YAW sweep vs the already aerodynamically-optimised LEVEL 5 integrated cockpit.
Every element of the frame, fork and seat post has been dissected, analysed, profiled, and tested in the pursuit of ultimate aerodynamic performance. To minimise drag, the forks form a holistic package with the headtube and handlebars to maximise airflow across a complete range of YAW, with fork blades of 68mmx15mm proving to be the optimal sweet spot for performance, providing significant aero gains at 5° and beyond. The profile of the fork and the position of the blade in relation to the rider and other downstream elements of the bike optimises airflow across the entirety of the bike. This interaction proved so harmoniously efficient that from 10° of YAW, the tube profile, in fact, starts to generate thrust, helping to propel you rather than push you back.
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 the bike and rider. Low in weight and providing stealth cable routing, the super-stiff carbon monocoque handlebar system is ergonomically and aerodynamically optimised for comfort and performance, with no significant penalty when riding on the hoods.
The hallmark of any aero bike is its clean aesthetics and streamlined form. Integration of the brake mounts moves the brakes inboard of the fork profile to enhance airflow over the front end and minimise the effects of drag.
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.
Aerodynamically optimised tube shapes ensure that the transition between the headtube, fork, and lower downtube performs from both an aerodynamic and handling perspective in the full range of YAW conditions typically encountered by a cyclist. The lower section of the downtube has been optimised to be faster with a bottle than without, demonstrating an advantage in generating thrust from 10° including the bottle. A crucial transition with the bottom bracket provides the torsional stiffness required for optimal power transfer, which results in tangible performance gains.
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 rear seat stay profiles are aerodynamically perfected to provide the ideal drag-defying ratio of width vs depth to improve airflow over the rear end significantly. Positioning the stays in perfect alignment with the forks maintains optimal flow attachment and reduces drag downstream of the rider for superior aerodynamics and lateral stiffness.
We create the bike, you decide the design. Be bold and bright or stealthy as you like. With millions of combinations, you can make a bike unique to you.
Just select customise after choosing your size.
Your Bike. Your Way
Built for speed, the Ultra 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 range
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