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2022 Specialized

Aethos Pro - Ultegra Di2

A carbon frame race bike with high-end components and shimano ultegra hydraulic disc brakes.
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Manufacturer Price

£7,250
FrameCarbon
ForkCarbon
Wheels700c Carbon
Drivetrain2 × 11 Electronic
GroupsetUltegra, Ultegra Di2
BrakesShimano Ultegra Hydraulic Disc
Where to Buy
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Aethos Pro - Ultegra Di2
Other Race bikes
Sizing
49cm

155cm – 163cm

52cm

161cm – 169cm

54cm

166cm – 175cm

56cm

172cm – 181cm

58cm

178cm – 186cm

61cm

183cm – 191cm

🐐 Estimated

Rider Fit Notes
  • 180cm, size 56cm, Just right
  • 185cm, size 61cm, Just right
Reviews

Summary

The Specialized Aethos is celebrated for its ultralight frame, exceptional ride quality, and superb handling, making it a standout in the race category. Its design focuses on lightweight and traditional aesthetics, offering a smooth, responsive ride that excels in climbing and descents. While it lacks some aero optimizations, its performance and comfort are highly praised across various reviews.

Pros
  • Ultralight carbon frameset

  • Exceptional ride quality and handling

  • Superb climbing and acceleration

  • Traditional design with modern performance

  • Comfortable for long rides

Cons
  • High price point

  • Limited aero optimizations

  • Some models have non-tubeless wheels

  • Electronic shifting only on certain builds

Key Quotes
This $4,800, 17.2-pound Aethos—the base model—is one of the finest road bikes, of any price, I’ve ridden in my long testing career.
Bicycling
The Aethos is crazy light.
Canadian Cycling Magazine logoCanadian Cycling Magazine
The Aethos is one of the finest-riding road frames I’ve ever experienced.
Cycling Tips logoCycling Tips

Feedback?

View all reviews

Gran Fondo Magazine
The Specialized Aethos Expert all-road bike in review

Aug 2022 · By

Our test team’s expectations of the Specialized Aethos Expert were very high. After all, the Specialized S-Works Aethos won our previous road bike group test by a large margin, albeit with a few upgrades. We put the stock Expert model featuring ULTEGRA Di2 components and a classic two-piece cockpit to the test to see if this model can fare just as well as an all-road bike, comparing it to six of this year’s best all-road models.

Highs
  • First-class handling

  • Quick acceleration

  • Pleasant level of vibration damping

  • Lots of all-round potential with the right upgrades

Lows
  • Tires are too skinny and offer limited reserves

  • Lack of integration

Read Review

The Gear Loop
Specialized S-Works Aethos review

Dec 2021 · Leon Poultney

We spend time with Specialized's latest lightweight, high-performance road bike that seemingly excels in all areas.

Highs
  • Climbs like a champion

  • Impossibly light

  • Stylish

  • Effortless to ride

Lows
  • The price

  • Looks better in rowdier colours

  • Limited wheel options

  • Lacks aero touches some might demand

Read Review

Road Bike Action
SPECIALIZED S-WORKS AETHOS VS. OPEN CYCLE MIN.D. - Road Bike Action

Sept 2021 · David Kennedy

When you stop listening to the pros and focus on the people, bikes like the Open MIN.D. and Specialized Aethos are the result

Read Review

Cycling Tips
Specialized Aethos Comp review: More affordable, more weight, still magical - CyclingTips

Aug 2021 · James Huang

Even an extra 100 g and heavy parts can’t dull this frame's luster.

Highs
  • Superb chassis efficiency and handling, excellent ride quality, generous tire clearance, classically understated aesthetics, headache-free cable routing, proprietary (almost) nothing, SRAM Rival AXS works just as well as Red and Force.

Lows
  • Heavier than some might like, mediocre (and poorly built) wheelset, almost impossible to get.

Read Review

Cyclist
Specialized S-Works Aethos review

May 2021 · James Spender

The Aethos is virtually the perfect bike, from its razor handling to incredible climbing. If only it had tubeless wheels and cost a bit less

Highs
  • Light and stiff

  • Incredible climber

  • Fantastic handling

Lows
  • Clincher-only wheels

Read Review

Bicycling
Specialized’s Aethos Comp Rival eTap AXS Is So Good, It’ll Scramble Your Brain

Apr 2021 · Matt Phillips

It sells for $4,800, but it rides like a million bucks.

Read Review

road.cc
Specialized Aethos Pro Ultegra Di2

Dec 2020 · Liam Cahill

What a bike. If you have the cash and don't care about aero, buy it

Highs
  • Incredible ride

  • Low weight

  • Excellent stiffness

  • Perfect handling

  • Gets most of the tech from the S-Works

Lows
  • No power meter

  • Expensive

Read Review

Bikerumor
Specialized Aethos adds more affordable Pro & Expert models, still sub-700g

Oct 2020 · Tyler Benedict

The earth-shatteringly lightweight Specialized Aethos has very quickly added two new models. They’re more affordable, and they’re both still really light. The Aethos Pro and Aethos Expert road bikes share the same new molds and tube shapes, but use a slightly more standard layup to bring prices starting at less than half of the S-Works’ […]

Read Review

Geometry
Specs
Build
Frame

Aethos FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc

BB StandardBSA, 68mm, Threaded

ColorSatin Blue Murano / Carbon/cobalt

Fork

FACT Carbon, 12x100mm thru-axle, flat-mount disc

Bottom Bracket

BSA, 68mm, threaded

Stem

Specialized Pro SL, alloy, 4-bolt

Handlebar

S-Works Short & Shallow

Saddle

Body Geometry Power Pro, Hollow Titanium Rails, Carbon Fiber Base

Seatpost

Roval Alpinist Carbon Seatpost

TypeRigid

Groupset
Rear Derailleur

Shimano Ultegra Di2 R8050, GS medium cage

Front Derailleur

Shimano Ultegra Di2 R8050, braze-on

Crank

Shimano Ultegra R8000, HollowTech 2, 11-speed

Chain

Shimano Ultegra, 11-speed

Brakes

Front: Shimano Ultegra R8070, hydraulic disc, Rear: Shimano Ultegra R8070, hydraulic disc

TypeShimano Ultegra Hydraulic Disc

Wheels
Rims

Front: Roval Alpinist CL, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Rear: Roval Alpinist CL, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes

Tires

Front: S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm, Rear: S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm

Rider Notes
Riders Also Viewed

First added 17 September

Last updated 8 October

Not listed for 1,699 days