Our fastest bikes, built to win
ULTRA-AERO SL
When being fast just isn’t fast enough! Faster in the wind tunnel and faster on the road, the ULTRA-AERO SL is designed to dominate, defeat the wind, and make your fastest rides even faster.
Aerodynamic Performance
Ride faster with a frame engineered to minimise drag in real-world conditions. The ULTRA-AERO SL has been refined around the crosswinds riders actually face, delivering proven aerodynamic gains that translate into measurable time savings over race distances.
Aero Frame Design
Hold speed with tube profiles developed through CFD, wind tunnel and real-world testing. The frame, fork and seatpost work as a unified aerodynamic system, optimised to manage airflow across a wide range of yaw angles for maximum efficiency.
Aero-Optimised Downtube
Maintain speed with a downtube shaped to work with your bottle, not against it. The flared lower section improves airflow while increasing stiffness around the bottom bracket for efficient power transfer under load.
Integrated Cockpit
A fully integrated cockpit keeps airflow uninterrupted across the front of the bike. The RI-2 carbon bar and stem hides every cable while creating a stiff, aerodynamic platform built for speed.
Aero Rear-End Design
Reduce drag across the rear of the bike with a truncated airfoil seat tube and aerodynamically shaped seat stays that closely follow the rear wheel. This design smooths airflow behind the rider while maintaining excellent lateral stiffness.
An Aero Obsession
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.
Switch Colour
- Save £55048hr Dispatch
Ultra-Aero SL Ultegra Di2
ULTRA series carbon bike, engineered to help riders make more of every effort. Mavic Cosmic S 42 carbon wheels & Shimano Ultegra Di2 deliver pro-level refinement, efficiency and control.
- Aero carbon frame
- 8.9kg
- Integrated carbon cockpit
- Mavic carbon wheels
- Save £40048hr Dispatch
Ultra-Aero SL 105 Di2
ULTRA series carbon bike, engineered to help riders make more of every effort. Mavic Ksyrium 30 alloy wheels & Shimano 105 Di2 electronic shifting combine speed, precision and intuitive control.
- Aero carbon frame
- 9.5kg
- Integrated carbon cockpit
- 32mm tyre clearance
- Save £35048hr Dispatch
Ultra-Aero SL 105 Mechanical
ULTRA series carbon bike, engineered to help riders make more of every effort. Mavic Ksyrium 30 alloy wheels & Shimano 105 12-speed mechanical shifting deliver responsive, race-inspired performance.
- Aero carbon frame
- 9.3kg
- Integrated carbon cockpit
- 32mm tyre clearance
- Save £300
Ultra-Aero SL Frameset
Lightweight carbon frame, fork, and handlebars—precision-engineered for aerodynamic efficiency and race-winning speed.
"The Ribble ULTRA-AERO SL is as uncompromising an aero race bike as you're likely to find."
Cycling News "Ribble's ULTRA-AERO SL rewrites the aero rule book."
Bike Radar
SIZE GUIDE
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.
Additional Extras
Ribble Ultra-Aero Clip On Extension Kit
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.
Muc-Off AirMach Electric Mini Inflator Pro
Fast, fuss-free inflation wherever you are. The Muc-Off AirMach Mini Inflator Pro is a compact electric pump that takes the effort out of topping up your tyres. Just press a button and let it do the hard work, perfect for quick fixes at home or on the road.Ribble SL R/SL Disc Rear Derailleur Hanger
Revive your ride with this durable, easy-to-fit replacement gear hanger. Tailored for Ribble SL R and SL Series carbon framesets, it ensures a perfect fit and smooth, dependable shifting.
Available On Cycle to Work
The ULTRA-AERO SL is available to order on cycle to work schemes.
We accept all major cycle to work scheme vouchers
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