New Noah Fast is 8.5 Watts Faster than its Predecessor
In 2025, aerodynamics is everything! Ridley’s aero engineers started from a blank slate to design the third generation of the Noah Fast. The result is a 100% aero bike. At a speed of 50 kilometers per hour, the Noah Fast is 8.5 watts faster than its predecessor. This highlights Ridley's deep-rooted commitment to aerodynamics, continuing their rich legacy!
Optimal Aerodynamics
The new Noah Fast is entirely developed in accordance with the latest UCI regulations regarding tube shapes and profiles. The major difference lies in the application of the 8:1 rule, which allows tubes to be eight times as long as their width, compared to the previous 3:1 ratio. This results in long, slender profiles in the fork and seat stays. The oversized downtube also stands out immediately, designed specifically to guide airflow around water bottles without creating drag. The headtube was extended by leveraging the compensating triangles permitted under UCI regulations. These sections behind the headtube and around the seat tube ensure better wind guidance. Additionally, a mix of symmetrical and asymmetrical profiles for the fork and seat stays optimizes aerodynamics. In crosswinds, the wind flows over a convex, elongated surface, providing the rider with greater stability. In summary, these developments deliver exceptional aerodynamic efficiency.
Progressive Geometry
Through years of sponsoring road cycling, Ridley observed a gradual shift in rider bike fits toward a more forward position. Based on this data, engineers determined that a seat tube angle of 76 degrees aligns with the median. A steeper seat tube angle accommodates the riders’ growing preference for an open hip angle, improving power transfer. A lower bottom bracket compensates for the wider tires used in modern cycling. Finally, the lower headtube, combined with an integrated cockpit, allows the rider to adopt a more aggressive aerodynamic posture, reducing frontal area.
Cockpit Integration
The Nimbus Aero cockpit was specifically developed for this new model and was designed alongside the frame. The focus was on balancing aero performance with comfort. This cockpit integration reduces turbulence compared to traditional cockpit designs. The Nimbus Aero cockpit follows the peloton’s trend toward narrower handlebars (360mm at the top). Ergonomically, flared drops ensure balanced handling, while the aero handlebar’s top section tilts slightly toward the rider, creating a natural wrist position when riding on the tops. The bends are also shaped to angle the shifters inward naturally. All features comply with the stricter UCI regulations for shifter placement.
Holistic Approach
The new Noah Fast is not just a lightning-fast bike but a 100% performance package that approaches cycling from a 360-degree perspective. Every aspect of the bike is tailored to modern cycling. The cockpit dimensions and geometry meet professional riders' expectations, and the 34mm tire clearance is future-proof. The aero engineers carried out all simulations with the bike in its entirety, including wheels, water bottles, a bike computer, and other essentials—exactly how riders will use the Noah Fast.
We invented speed!
3rd generation NOAH continuing our aero legacy, proven by Tour de France sprint wins from icons like Robbie McEwen, André Greipel, and Caleb Ewan.
Ridley has a long tradition of developing aero bikes, pioneering innovations like integrated seat posts, brakes, and concealed cables—features later adopted by others. Since its debut at the 2006 Tour de France, where Robbie McEwen won the green jersey, the Noah series has consistently delivered success. André Greipel later became the king of sprinters on the Champs-Elysées, and Caleb Ewan continued this legacy over a decade later. Each Noah model has set a new benchmark in the peloton. In 2025, the third generation of the Noah Fast is ready, adopted by Uno-X Mobility at the highest level of competition.
Official Bike of Uno-X Mobility
Starting in 2025, Uno-X Mobility and Ridley join forces in an intensive collaboration with one clear goal: to conquer the cycling world. Both parties share the same values: a relentless pursuit of innovation and improvement, driven by an unwavering passion for racing. In recent months, both teams have worked tirelessly behind the scenes to prepare optimally for the new cycling season. Ridley's rich heritage in developing the fastest bikes, combined with the insights and experiences of the riders, forms a winning partnership. The Noah Fast is the result. With great ambition, Ridley and the riders look forward to the upcoming classics and Grand Tours.
The Definition of Aerodynamics
A key focus in developing the Noah Fast was reducing drag. Our engineers targeted two elements they could influence: the drag coefficient (Cd) and the frontal area. The Cd was minimized using high-performance aero profiles in the frame, a slimmer seat post, a deep headtube, and an integrated cockpit. The frontal area was reduced by incorporating a narrower handlebar and slender aero profiles.
The Development Process
From the first sketch to the final bike, the development process of the Noah Fast is a long-term endeavor. Our engineers went through multiple stages, making carefully considered decisions to create the fastest bike possible.
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Noah Fast
The fastest bike we’ve ever builtIn 2025, aerodynamics is everything! Ridley’s product developers started with a blank slate for the third generation of the Noah Fast. The result is a 100% aero bike. At a speed of 50 kilometers per hour, the Noah Fast is 8.5 watts faster than its predecessor. This underscores that aerodynamics are rooted in Ridley’s DNA.
Read moreNoah
All the goodness of the Noah Fast at a lower price pointAlongside the Noah Fast, Ridley is also launching the Noah. It shares the same geometry and characteristics as the Noah Fast but with a different carbon lay-up. A second difference lies in the cockpit integration of the Noah. Riders can equip the Noah with a classic handlebar/stem combination or the Cirrus Pro Integrated cockpit. In addition to electronic shifting, mechanical shifting also remains possible on this bike.
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