RibbleUltra-Aero SL
The cheaper carbon grade of Ribble's Ultra-Aero, sold alongside the Ultra-Aero SL R with the same aero tube shapes but a heavier T1000/T800 layup and Ribble's RI-2 one-piece bar instead of the wing-topped Ultra bar. It keeps the threaded bottom bracket and is sold direct with mechanical 105, 105 Di2 or Ultegra Di2, or as a frameset.
- From
- $6,660$6,660£4,449
- Builds
- 4
- Sizes
- 5
- Frame weight
- 1,200 g2.65 lb
Our verdict
Overall
out of 100, average of 7 categories
A cheap way onto an aero carbon frame with a threaded bottom bracket and a one-piece bar, sold direct. It is heavy for an aero bike, the frame dates from 2021, and the lower builds come on alloy wheels.
Scored Nov 2026
- + Affordable way in
AI-drafted from the specs on this page and reviewed before publishing. Scores are relative to every bike in the catalog when they were given, so they drop as newer bikes and parts raise the bar.
- Aero
- 76/100
- Frame
- 60/100
- Components
- 56/100
- Fit
- 66/100
- Practicality
- 72/100
- Price
- 93/100
- Weight
- 68/100
Aero claims and front-end integration
Carbon grade, weight and warranty
Groupset, wheels and power meter
Sizes and adjustment range
Travel, standard parts, servicing
From the cheapest complete-bike MSRP
From the lightest claimed weight (8.4 kg, size M)
Bike duel
Frame & platform
Frame & fork
- Frame material
- Carbon (T1000 and T800 monocoque)
- Fork material
- Carbon
- Frame weight
- 1,200 g2.65 lb
- Fork weight
- 580 g20.5 oz
- Weight measured on
- Ribble's figures
- Frame sizes
- XS, S, M, L, XL
- Also available as
- Ultra-Aero SL R: same design with a lighter, higher-grade layup and the Ultra-Aero bar
Compatibility & standards
- Brake type
- Hydraulic disc
- Wheel size
- 700c
- Bottom bracket standard
- BSA 68 mm threaded
Fit & adjustability
- Cockpit
- One-piece bar and stem (Ribble RI-2 carbon)
- Seatpost type
- Ribble Ultra-Aero SL R/SL setback carbon seatpost
Builds & components
Highlighted rows differ between builds. Green marks the best value.
Ultra-Aero SL Ultegra Di2 | Ultra-Aero SL 105 Di2 | Ultra-Aero SL 105 | Ultra-Aero SL frameset | |
|---|---|---|---|---|
| Overview | ||||
| Price (MSRP) | $6,660$6,660£4,449 | $5,160$5,160£3,349 | $4,480$4,480£2,849 | $3,560$3,560£2,299 |
| Weight | 8.4 kg18.5 lb | 9.5 kg20.9 lb | 9.4 kg20.7 lb | — |
| Weight measured on size | M | M | M | — |
| Type | Complete bike | Complete bike | Complete bike | Frameset |
| Notes | Regular price; Ribble's end-of-season sale, ending 2 November 2026, offered it at £3,599 / $5,015. Ribble doesn't list the crankset. | Regular price; Ribble's end-of-season sale, ending 2 November 2026, offered it at £2,749 / $3,975. Ribble's weights list this build heavier than the mechanical 105 one. | Regular price; Ribble's end-of-season sale, ending 2 November 2026, offered it at £2,299 / $3,425. | Regular price; Ribble's end-of-season sale, ending 2 November 2026, offered it at £1,999 / $2,880. |
| Drivetrain | ||||
| Groupset | Shimano Ultegra Di2 R8100 | Shimano 105 Di2 R7100 | Shimano 105 R7100 | — |
| Launched | 2021 · current generation | 2022 · current generation | 2023 · current generation | — |
| Speeds | 12-speed | 12-speed | 12-speed | — |
| Electronic | Yes | Yes | No | — |
| Drivetrain | 2x | 2x | 2x | — |
| Shifters | Shimano Ultegra Di2 ST-R8170 | Shimano 105 Di2 ST-R7170 | Shimano 105 ST-R7120 | — |
| Bottom bracket | Shimano BB-R60 | Shimano BB-R60 | Shimano BB-R60 | — |
| Standard | BSA 68 mm threaded | BSA 68 mm threaded | BSA 68 mm threaded | — |
| Front derailleur | Shimano Ultegra Di2 R8150 | Shimano 105 Di2 R7150 | Shimano 105 R7100 | — |
| Rear derailleur | Shimano Ultegra Di2 R8150 | Shimano 105 Di2 R7150 | Shimano 105 R7100 | — |
| Cassette | Shimano Ultegra R8101 | Shimano CS-HG710 | Shimano CS-HG710 | — |
| Range | 11-34 | 11-36 | 11-36 | — |
| Speeds | 12-speed | 12-speed | 12-speed | — |
| Chain | Shimano CN-M8100 | Shimano CN-M7100 | Shimano CN-M7100 | — |
| Brakes | ||||
| Brake levers | Shimano Ultegra Di2 ST-R8170 | Shimano 105 Di2 ST-R7170 | Shimano 105 ST-R7120 | — |
| Brake calipers | — | Shimano 105 BR-R7170 | Shimano 105 BR-R7170 | — |
| Type | — | Hydraulic disc | Hydraulic disc | — |
| Rotors | Shimano RT-CL800 | — | — | — |
| Front rotor | 160 mm | — | — | — |
| Wheels & tires | ||||
| Wheelset | Mavic Cosmic S 42 | Mavic Ksyrium 30 Disc | Mavic Ksyrium 30 Disc | — |
| Material | Carbon | Aluminium | Aluminium | — |
| Tires | Vittoria Corsa N.EXT TLR | Vittoria Rubino V TLR G2.0 | Vittoria Rubino V TLR G2.0 | — |
| Tire width | 30 mm | 30 mm | 30 mm | — |
| Cockpit | ||||
| Handlebar | Ribble RI-2 Carbon Integrated | Ribble RI-2 Carbon Integrated | Ribble RI-2 Carbon Integrated | — |
| Type | One-piece bar and stem | One-piece bar and stem | One-piece bar and stem | — |
| Integrated stem | Yes | Yes | Yes | — |
| Material | Carbon | Carbon | Carbon | — |
| Saddle & seatpost | ||||
| Saddle | Selle Italia SLR Advan Superflow L3 | — | Selle Italia Model X Light | — |
| Seatpost | Ribble Ultra-Aero SL R/SL Setback Carbon | Ribble Ultra-Aero SL R/SL Setback Carbon | Ribble Ultra-Aero SL R/SL Setback Carbon | — |
| Material | Carbon | Carbon | Carbon | — |
Ultra-Aero SL price & value
Where it's cheapest
MSRPs converted at ECB reference rates of 2026-10-05 (1 EUR = 1.1204 USD = 0.8472 GBP). US prices exclude sales tax, so add your state's rate before comparing.
| Build | Market | MSRP | In EUR | vs cheapest |
|---|---|---|---|---|
| Ultra-Aero SL Ultegra Di2 | UK (GBP, incl. VAT) | £4,449 | €5,251 | cheapest |
| USA (USD, excl. sales tax) | $6,660 | €5,944 | +13% | |
| Ultra-Aero SL 105 Di2 | UK (GBP, incl. VAT) | £3,349 | €3,953 | cheapest |
| USA (USD, excl. sales tax) | $5,160 | €4,605 | +17% | |
| Ultra-Aero SL 105 | UK (GBP, incl. VAT) | £2,849 | €3,363 | cheapest |
| USA (USD, excl. sales tax) | $4,480 | €3,999 | +19% | |
| Ultra-Aero SL frameset | UK (GBP, incl. VAT) | £2,299 | €2,714 | cheapest |
| USA (USD, excl. sales tax) | $3,560 | €3,177 | +17% |
Building up the Ultra-Aero SL frameset
Included: frame and fork only, as listed.
Still to buy: Groupset, Crankset, Cassette, Chain, Brake calipers, Wheelset, Tires, Handlebar, Seatpost, Saddle, Pedals.
Ownership checklist
1 of 1 known checks pass, 3 not published by Ribble. Why these checks
- ✓
Threaded bottom bracket
BSA 68 mm threaded
- ?
UDH derailleur hanger
- ?
Standard 12×142 mm rear axle
- ?
Works with mechanical shifting
Ultra-Aero SL geometry
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Rider height min | 160 cm5′3″ | 165 cm5′5″ | 170 cm5′7″ | 178 cm5′10″ | 185 cm6′1″ |
| Rider height max | 165 cm5′5″ | 170 cm5′7″ | 178 cm5′10″ | 185 cm6′1″ | 191 cm6′3″ |
| Stack | 506 mm19.9″ | 523 mm20.6″ | 545 mm21.5″ | 564 mm22.2″ | 583 mm23″ |
| Reach | 379 mm14.9″ | 385 mm15.2″ | 392 mm15.4″ | 401 mm15.8″ | 410 mm16.1″ |
| Seat tube angle | 75° | 74° | 73.5° | 73.3° | 73.3° |
| Head tube angle | 72° | 73° | 73° | 73.5° | 73.5° |
| Head tube length | 105 mm4.1″ | 120 mm4.7″ | 140 mm5.5″ | 160 mm6.3″ | 180 mm7.1″ |
| Effective top tube | 515 mm20.3″ | 535 mm21.1″ | 555 mm21.9″ | 570 mm22.4″ | 585 mm23″ |
| Seat tube length | 470 mm18.5″ | 500 mm19.7″ | 520 mm20.5″ | 540 mm21.3″ | 560 mm22″ |
| Chainstay | 410 mm16.1″ | 410 mm16.1″ | 410 mm16.1″ | 410 mm16.1″ | 410 mm16.1″ |
| Wheelbase | 981 mm38.6″ | 975 mm38.4″ | 985 mm38.8″ | 999 mm39.3″ | 1,014 mm39.9″ |
| BB drop | 69 mm2.7″ | 69 mm2.7″ | 69 mm2.7″ | 69 mm2.7″ | 69 mm2.7″ |
| Fork offset | 53 mm2.1″ | 45 mm1.8″ | 45 mm1.8″ | 45 mm1.8″ | 45 mm1.8″ |
| Front centre | 518 mm20.4″ | 575 mm22.6″ | 585 mm23″ | 598 mm23.5″ | 613 mm24.1″ |
| Wheel size | 700c | 700c | 700c | 700c | 700c |
| Crank length | 165 mm6.5″ | 170 mm6.7″ | 170 mm6.7″ | 172.5 mm6.8″ | 172.5 mm6.8″ |
| Stem length | 80 mm3.1″ | 100 mm3.9″ | 100 mm3.9″ | 100 mm3.9″ | 110 mm4.3″ |
| Handlebar width | 380 mm15″ | 400 mm15.7″ | 400 mm15.7″ | 400 mm15.7″ | 420 mm16.5″ |
Side view
Drawn to scale (how to read it).
How the geometry rides
The Ultra-Aero SL in size M against the middle size of 65 other bikes: tendencies from geometry, not a ride review (how to read this).
- Wheelbase985 mm38.8″
shortestlonger than 50% of 65 bikeslongest
- Front centre585 mm23″
shortestlonger than 60% of 29 bikeslongest
- Chainstay410 mm16.1″
shortestlonger than 63% of 73 bikeslongest
Good to know
Racing
Ribble says the Ultra-Aero SL frame and fork are UCI approved.
Source
Ultra-Aero SL FAQ
Is the Ribble Ultra-Aero SL UCI legal?+
Yes. The Ribble Ultra-Aero SL is UCI legal, so it can be raced in UCI-sanctioned road races.
How much does the Ribble Ultra-Aero SL cost?+
Manufacturer prices (MSRP): $3,560–$6,660 / £2,299–£4,449 across 4 listed builds and framesets: Ultra-Aero SL Ultegra Di2, Ultra-Aero SL 105 Di2, Ultra-Aero SL 105 and Ultra-Aero SL frameset.
How much does the Ribble Ultra-Aero SL weigh?+
The lightest complete build listed (Ultra-Aero SL Ultegra Di2) weighs 8.4 kg (18.5 lb) in size M. The frame weighs 1,200 g (2.65 lb) (Ribble's figures).
What sizes does the Ribble Ultra-Aero SL come in?+
5 sizes: XS, S, M, L and XL. The manufacturer recommends them for riders from 160 cm (5′3″) to 191 cm (6′3″).
Which groupsets are compatible with the Ribble Ultra-Aero SL?+
Bottom bracket: BSA 68 mm threaded.
What builds of the Ribble Ultra-Aero SL are available?+
Ultra-Aero SL Ultegra Di2: Shimano Ultegra Di2 R8100; Ultra-Aero SL 105 Di2: Shimano 105 Di2 R7100; Ultra-Aero SL 105: Shimano 105 R7100.
Sources
- https://www.ribblecycles.co.uk/ribble-ultra-sl/
- https://www.ribblecycles.co.uk/ribble-ultra-aero-sl-r-105-di2/
Ribble Ultra-Aero SL data last updated · How the data is checked ·