Ultra-Aero SL R - Hero
Shimano Dura-Ace Di2

  1. $11,485
We have crafted a World Tour-worthy bike using a carefully curated selection of top-tier components, ready to compete at the highest level. In the range-topping Hero specification, the ULTRA-AERO SL R features Shimano's professional-grade Dura-Ace Di2 groupset, Zipp 303 aerodynamic carbon wheels, World Tour favourite Pirelli P-Zero Race tyres, and a 3D printed Selle Italia SLR Boost Carbonio Superflow saddle. The integrated aerodynamic carbon cockpit completes the ultimate performance package.
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Product code: BULTSLR9200D

...And Many Ways To Pay...

  • "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

We have crafted a World Tour-worthy bike using a carefully curated selection of top-tier components, ready to compete at the highest level. In range-topping Hero specification, the ULTRA-AERO SL R features Shimano's professional-grade Dura-Ace Di2 groupset, Zipp 303 SW aerodynamic carbon wheels, World Tour favourite Pirelli P-Zero Race tyres, and 3D-printed Selle Italia SLR Boost Carbonio Superflow saddle. The integrated aerodynamic carbon cockpit completes the ultimate performance package.

Groupset

The pinnacle of Shimano Road technology and innovation. Dura-Ace 9200 brings new levels of comfort and control to road cycling. With the fastest wireless shifting and even more precise brake modulation, Dura-Ace redefines performance. Wireless 12-speed shifting keeps your bike looking clean while offering the fastest, most precise gear changes available. Featuring semi-compact 52/36 gearing for the perfect balance of top-end speed and climbing agility, every component is refined to deliver the ultimate on-bike experience, whether you’re sprinting to victory on the Champs-Elysees or crushing your local climb.

Groupset

Wheelset

Zipp 303 SW is the new go-to wheelset for all roads ahead, with SRAM AXS-connected in-wheel tyre pressure monitoring. Lightweight yet strong and resilient, 303 SW delivers aerodynamic performance and superior speed, no matter the surface or terrain. Paired with a Pirelli P-Zero Race tyre designed to deliver high-performance results. Puncture-resistant without impacting weight and able to maintain grip in wet or dry conditions, this is the tyre of choice for the pro peloton.

This bike is fitted with black tyres and standard butyl inner tubes. As a result, the tyre pressure monitoring system built into the Zipp 303 wheelset will not be active. To enable this feature, Zipp AXS smart tubes or a tubeless setup with Zipp’s compatible valves are required.

Wheelset

Handlebars

Engineered for pure speed, the ULTRA-AERO bars are purpose-built for our fastest-ever aero bike. Their patented, next-generation design introduces a revolutionary wake-generating concept that reshapes airflow, creating a controlled pocket for the rider’s legs to sit within and reducing drag where it matters most. The aggressive, wing-shaped tops slice the air with scalpel-like precision, while the ergonomic drops and flat-top section deliver comfort and control on long rides or steep climbs. A textured finish removes the need for bar tape, keeping things clean, fast, and uncompromisingly aerodynamic.

Handlebars

Saddle

The ULTRA-AERO seat post features a truncated aerofoil profile that is aerodynamically optimised to reduce drag in the high-speed airflow disturbed by the rider's leg. A composite shaft absorbs road shocks for vibration-smoothing ride quality, further enhanced by a Selle Italia SLR Boost 3D Kit Carbonio Superflow saddle, featuring a 3D-printed surface designed to maximise comfort and performance and a superflow cut-out for increased flexibility and airflow

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 Angle75.0°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 frame size: - Sport build: 8.25 kg - Enthusiast build: 8.20 kg - Hero: 7.8 kg Frame only (medium): 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.
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 Clip-On 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.
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.
Yes. Combined with the frameset, the ULTRA-AERO carbon integrated handlebars cleverly conceal all the cables, preserving the Ultra's super-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.
Thru Axles: M12 x 1.5 mm x 125 mm Front - M12 x 1.5 mm x 173 mm Rear.
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.