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Ultra-Aero SL R - Sport
Shimano 105 Di2

  1. £3,499
  2. Was £3,699
  3. Save £200
The ULTRA-AERO SL R results from doing something that has never been done before. It guarantees gains never seen on a road bike and is aerodynamically optimised to make your fastest rides even faster. In the Sport specification, it's paired with Shimano's 105 Di2 electronic groupset, lightweight and dynamic Ksyrium 30 alloy wheels, 28 mm Pirelli P-Zero Race tyres, and a unisex Selle Italia Model X Superflow saddle. The ground-breaking Ultra integrated aerodynamic carbon cockpit completes this race-ready package.
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Product code: BULTSLR7150D

Free Custom Colour
For a limited time only, you can get a free Custom Colour paint scheme on this bike. Simply choose your dream design in our bike configurator.

Enter code at checkout: FREECC
Offer excludes flip paints

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  • "A trailblazer as a pure aero bike that is focused solely on speed"
    Rouleur
  • "An exceptionally fast and focused aero road bike"
    BikeRadar
DescriptionGroupsetWheelsetHandlebarsSaddleSizeGeometryFrequently Asked Questions

Description

The ULTRA-AERO SL R results from doing something that has never been done before. It guarantees gains never seen on a road bike and is aerodynamically optimised to make your fastest rides even faster. In Sport specification, it's paired with Shimano's 105 Di2 electronic groupset, lightweight and dynamic Ksyrium 30 alloy wheels, 28 mm Pirelli P-Zero Race tyres, and a unisex Selle Italia Model X Superflow saddle. The ground-breaking Ultra integrated aerodynamic carbon cockpit completes this race-ready package.

Groupset

Shimano 105 Di2 is the culmination of years of research and development. By combining technologies and functions inherited from Dura-Ace and Ultegra, 105 Di2 will transform your road cycling experience. With a shared Di2 platform, sophisticated ergonomics, 105-optimised gear combinations and the exceptional stopping power of hydraulic disc brakes, Shimano 105 Di2 marks a new era of performance, making accurate, lightning-fast, and reliable electronic gear shifting more accessible to all.

Groupset

Wheelset

Ksyrium 30 Disc is the perfect entry point into high-level race performance. This tubeless-compatible wheelset's dynamic ride quality helps you roll faster and smoother while retaining a lightweight feel for climbing and accelerating. Paired with Pirelli P Zero road tyres; which balance performance with durability, for both reliability and comfort. The carcass features excellent puncture resistance, whilst coming in at an impressively low weight.

Wheelset

Handlebars

Engineered exclusively for our fastest-ever aero bike, the ULTRA-AERO bars redefine aerodynamic integration with a patent-pending, next-generation design. At the heart of this innovation is a groundbreaking wake-generating concept that disrupts airflow, creating a controlled wake for the rider’s legs to sit within while strategically manipulating vortexes to enhance overall aerodynamics. The aggressive, drag-defying anatomic wing top section reinforces the bar’s aero dominance, cutting through the air with precision. But speed isn’t the only priority—comfort is integral to the design. The flat-top section offers a secure and relaxed hand position for climbing, while the ergonomically optimized drops naturally conform to the rider’s palm. With a textured finish that eliminates the need for bar tape, every detail is fine-tuned for performance and control.

Handlebars

Saddle

The ULTRA-AERO seat post features a truncated aerofoil profile that's aerodynamically optimised to reduce drag in the high-speed airflow disturbed by the rider's leg. A composite shaft absorbs road shocks for a vibration-smoothing ride quality further enhanced by a Selle Italia Model X saddle. Designed with sustainability in mind but without compromising performance, Model X features a glue-less assembly; with gel padding and a superflow cut-out for all-day ride comfort.

Saddle

Size

To assist you in selecting the correct size, simply find your height on the graphic. It illustrates our recommendations so you can be confident that the size you order will be correct. If you find that your height is between sizes, we recommend you opt for the smaller size.

For more information on why choosing the right bike size is important, please visit our Bike Sizing page, or learn more about Bike Fitting.

Size

Geometry

SizeXSSMMDLGXL
Rider Height5'3 - 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)
Crank Length (mm)165170170172.5172.5
A -Seat Angle75°74°73.5°73.3°73.3°
B - Top Tube (mm)515535555576590
C - Head Angle72°73°73°73.5°73.5°
D - Offset (mm)5345454545
E - Head Tube (mm)105120140160180
F - BB Drop (mm)6969696969
RC - Chainstay (mm)410410410410410
FC - Front Centre (mm)518575585598613
Reach (mm)379385392401410
Stack (mm)506523545564583
WB - Wheelbase (mm)9819759859991014
G - Seat Tube C-Top (mm)470500520540560
Integrated Handlebar Default (mm)360/400 x 80360/400 x 100360/400 x 100360/400 x 100380/420 x 120

Frequently Asked Questions

If you're between sizes, we usually recommend going smaller. It's easier to tweak the fit with a longer stem or more seat post, while a bigger frame gives you less room to adjust.
Complete build weights, based on a medium size: Sport: 8.25 kg - Enthusiast: 8.20 kg - Hero: 7.8 kg - Frame only: 1200 g.
Both use a bespoke blend of T1000 and T800 carbon fibres, but the SL R features more T1000 in its layup. This reduces weight slightly while maintaining the same stiffness, strength, and durability.
We offer a lifetime warranty on all Ribble frames and forks for the original purchaser. This covers any manufacturing defects in materials or workmanship, so you can ride with complete confidence. The standard manufacturer's warranty covers all other components.
The ULTRA-AERO SL R frameset is approved for use in UCI-sanctioned events. To comply with regulations, the supplied front fork disc brake adaptor must be swapped for the UCI-approved version included with the bike. Failure to make this change may result in disqualification when competing under UCI rules.
Not in the traditional sense. The bars' aggressive profile prevents compatibility with all current extension models. However, we have developed a suitable alternative: the Ultra Aero Extensions. Exclusive to the Ultra SL R, these carbon extensions bolt into the underside of the handlebars, using the two mounting points normally reserved for an out-front computer mount. Anyone wanting to mount a cycle or GPS computer can mount it to the extensions themselves.
The ULTRA-AERO SL R uses a 68 mm BSA threaded bottom bracket shell, allowing for ease of maintenance and enhanced reliability.
The upper and lower bearings are P16 x 40 x 52 x 7 mm 45 x 45° and ACB 40 x 51.8 x 8 mm 45 x 45°, respectively.
Yes, the ULTRA-AERO carbon integrated handlebars, in combination with the frameset, enable all the cables to be entirely hidden. This preserves the ultra-sleek lines for maximum drag savings.
The frame is optimised around 28 mm tyres and can fit up to 32 mm, depending on the tread profile and manufacturer.
The ULTRA-AERO SL R features two bottle cage mounts with one on the seat tube and one on the downtube. Both are positioned to work seamlessly with Ribble aero bottle cages for optimal aerodynamic performance.
The frame requires M12 x 125 mm x 1.5 and M12 x 173 mm x 1.5 front and rear thru axles.
No. As a speed-focused aero bike, the frame doesn’t feature integrated mudguard mounts.
We recommend a maximum system weight of 120 kg (bike, rider & luggage).
Yes. The extensions bolt into the underside of the handlebars via the mounting points usually used for an out-front computer mount. A computer or GPS unit can then be mounted to the extensions.
Yes. While the aero profile can limit compatibility, the bars are designed to work with standard out-front computer mounts, which fit neatly underneath.
No. Pedals aren’t included as riders use different systems. You can, however, choose from a range of best-selling pedals when configuring your bike.