Everything You Need to Know About the New Sizing Options on Our Nimbus Aero Cockpit
With the launch of our latest Noah Fast, we’re also introducing a completely redesigned cockpit: the Nimbus Aero. This cockpit isn’t just optimized for aerodynamics — it’s also built with fit, comfort, and personalization in mind. In this article, we’ll walk you through its key features, why we made certain choices, and how you as a rider will benefit.
The Nimbus Aero cockpit has a width of 360 mm at the tops and 400 mm in the drops, with a subtle flare for more control during sprints or descents. The drop measures 125 mm and the reach in the drops is 75 mm — a balanced geometry that caters to both competitive racers and dedicated enthusiasts. The tops feature a slight backsweep, offering a more relaxed hand position on longer rides.
The Nimbus Aero cockpit has a width of 360 mm at the tops and 400 mm in the drops, with a subtle flare for more control during sprints or descents. The drop measures 125 mm and the reach in the drops is 75 mm — a balanced geometry that caters to both competitive racers and dedicated enthusiasts. The tops feature a slight backsweep, offering a more relaxed hand position on longer rides.
New: Stem Reach & Stem Stack
While designing the new cockpit, we introduced two new sizing parameters: Stem Reach (SR) and Stem Stack (SS). These make it even easier to fine-tune your ideal position on the bike.
Stem Reach (SR) indicates how much additional horizontal length the cockpit adds to the frame. For example, a stem reach of 115 mm means you gain 115 mm of reach compared to the head tube. Prefer a more compact or more stretched-out position? Choosing a different stem length can make all the difference. Based on our experience, the configurator provides targeted recommendations for the best frame–stem combination.
Stem Stack (SS) refers to the vertical height the cockpit adds to the frame’s stack. For the Noah Fast, the cockpit is available in three stack heights: 55 mm, 75 mm, and 100 mm. Combined with a limited number of spacers, this ensures you can always strike the right balance between aerodynamics, comfort, and handling. Fewer spacers also mean a sleeker, more aerodynamic overall look.
Stem Reach (SR) indicates how much additional horizontal length the cockpit adds to the frame. For example, a stem reach of 115 mm means you gain 115 mm of reach compared to the head tube. Prefer a more compact or more stretched-out position? Choosing a different stem length can make all the difference. Based on our experience, the configurator provides targeted recommendations for the best frame–stem combination.
Stem Stack (SS) refers to the vertical height the cockpit adds to the frame’s stack. For the Noah Fast, the cockpit is available in three stack heights: 55 mm, 75 mm, and 100 mm. Combined with a limited number of spacers, this ensures you can always strike the right balance between aerodynamics, comfort, and handling. Fewer spacers also mean a sleeker, more aerodynamic overall look.
Full Personalization
The Nimbus Aero cockpit comes in five stem lengths and three stack heights, offering a wide range of bike fit options. Whether you’re chasing an aggressive, aero-optimized position or prefer something more comfort-oriented, there’s always a setup that matches your riding style and body geometry.
Want to be 100% sure you’ve found your ideal position? Get a professional bike fit (for example, at the Aero Performance Lab) or consult your local Ridley dealer.
Want to be 100% sure you’ve found your ideal position? Get a professional bike fit (for example, at the Aero Performance Lab) or consult your local Ridley dealer.
Through the configurator on our website, you can easily build your ideal Noah Fast — cockpit included. Thanks to our extensive experience and data, we provide tailored recommendations per frame size and stem length, ensuring you’re not only comfortable but also riding in the most aerodynamic position possible.
