Save £300

Ultra-Aero SL - Sport
Shimano 105 12-Speed

  1. £2,499
  2. Was £2,799
  3. Save £300
When being fast just isn’t fast enough! Faster in the wind tunnel and quicker on the road, the ULTRA-AERO SL is designed to dominate, defeat the wind, and make your fastest rides even faster. In the Sport specification, it's paired with Shimano's 105 12-speed groupset, lightweight and dynamic Mavic Ksyrium 30 alloy wheels, 28 mm Pirelli P-Zero Road tyres, and an unisex Selle Italia Model X Superflow saddle. The integrated aerodynamic carbon cockpit completes this drag-defying package.
Choose Your Size
Product code: BULTSL7100D

...And Many Ways To Pay...

  • "Exceptionally fast"
    Cycling News
  • "Ribble's Ultra-Aero SL rewrites the aero rule book"
    Bike Radar
  • "Puts the Rider front & centre"
    Cycling Plus
DescriptionGroupsetWheelsetHandlebarsSaddleSizeGeometryFrequently Asked Questions

Description

When being fast just isn’t fast enough! Faster in the wind tunnel and quicker on the road, the ULTRA-AERO SL is designed to dominate, defeat the wind, and make your fastest rides even faster. In Sport specification, it's paired with Shimano's 105 12-speed groupset, lightweight and dynamic Mavic Ksyrium 30 alloy wheels, 28 mm Pirelli P-Zero Road tyres, and unisex Selle Italia Model X Superflow saddle. The integrated aerodynamic carbon cockpit completes this drag-defying package.

Groupset

Shimano’s first and only 12-speed mechanical groupset is the latest addition to the premium road family. 105 7100 combines pure cycling with pure craftmanship. Inspired by 105 Di2, this versatile drivetrain delivers the wide gear range, hand-friendly ergonomics and all-condition braking confidence you’ve always craved. Developed from Shimano’s Science of Speed philosophy, 105 mechanical raises accessible performance to a whole new level.

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 grip. The carcass features excellent puncture resistance while keeping weight impressively low.

Wheelset

Handlebars

The Ribble RI-2 carbon integrated handlebar is a proprietary system that conceals every cable while providing optimal fit, adjustability, and seamless integration. This one-piece cockpit exemplifies the perfect marriage of form and function, combining a clean, cable-free aesthetic with advanced aerodynamics to reduce drag by up to 40% compared to a conventional handlebar setup. With a super-stiff carbon monocoque construction and refined ergonomics, the RI-2 system is designed for speed-conscious road riders who prioritise performance and all-day comfort.

* Image for illustrative purposes only. The RI-2 replaces the LEVEL 5 handlebar and features updated graphics and a revised aesthetic.

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 Angle75.0°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 Bar Default (mm)380 x 80400 x 100400 x 100400 x 100420 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.
Based on a medium frame size: Sport: 8.65 kg - Enthusiast: 8.60 kg - Pro: 8.50 kg - Frame only (medium): 1200 g
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 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.
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.
No. The ULTRA-AERO handlebars are exclusive to the ULTRA-AERO SL R and are only available as part of this bike.
The ULTRA-AERO SL 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 Ribble RI-2 integrated carbon handlebars, in combination with the frameset, enable all the cables to be fully hidden, 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 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.