Don’t get them wrong, Specialized is all for racing. Grand Tour top steps, Classic’s Monuments—they’re in their DNA. But sometimes riding simply to ride, riding for the love of riding, is just what they need. And this is what the Aethos lives for.
Sure, it’s given nothing up to performance, and happens to be the lightest frame out there, but with no compromise to style. Aethos: Billions of calculations in the pursuit of one thing—the perfect ride.
Top off the world’s lightest frame with Shimano’s legendary Dura-Ace Di2 groupset and Roval’s featherweight Alpinist wheels and you’re left with a perfectly balanced top-tier ride that gives up nothing in the name of performance.
The Aethos frame has been designed with the perfect combination of ultimate ride feel, light weight, and style—from accelerating up steep pitches and descending technical descents, to all-day saddle comfort on even the longest coffee rides, the Aethos hits the mark. But how, you ask? By reinventing the traditional road shape found on bikes of the past, Specialized have subtly altered these shapes to deliver massive gains in stiffness and balance, all without affecting weight or durability. Pair that with an entirely new layup and process that they’ve perfected over multiple decades and you have the lightest frame out there (585 grams, S-Works, size 56cm). The Aethos is more than just a new bike, it’s the first of a new breed.
A featherweight frame is useless without confidence-inspiring ride characteristics, which is why Specialized have developed the Aethos to have the perfect balance of front and rear stiffness combined with exceptional ride quality. By studying the flexing and breathing of carbon fiber, they were able to discover groundbreaking findings about how forces flow through frames. Just a few pedal strokes and you’ll realize this sublime ride sets a new standard.
Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind. Specialized have also spec’d it with Roval’s all-new Alpinist carbon seatpost and wheels, further saving weight and improving ride characteristics. Everything in pursuit for the perfect ride.
Key Features & Benefits
- Fact 12r Carbon frame:Lightweight and lively for the best all-round road bike ever designed.
- Shimano Hydraulic disc brakes:Stop faster, by spending less time on the brakes your average speed will increase for no extra effort.
- Shimano Dura-Ace Di2 Electronic Groupset:Precise and reliable shifting with a wide range of gears for any climb or descent.
Full Specification
- Frame:S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc
- Fork:S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
- Number of Gears:24
- Gear Shifters:Shimano Dura-Ace R9270, hydraulic disc
- Chainset:Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter
- Chainrings:52/36T
- Rear Cassette:Shimano Dura-Ace, 12-speed, 11-30t
- Chain:Shimano XTR M9100, 12-speed w/ quick link
- Front Derailleur:Shimano Dura-Ace R9250, braze-on
- Rear Derailleur:Shimano Dura-Ace R9250, 12-speed
- Bottom Bracket:Shimano Dura-Ace, BB-R9100
- Pedals:Not supplied:Shop pedals here
- Rims:Roval Alpinist CLX, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered
- Front Hub:Roval AFD hub, 21h
- Rear Hub:Roval AFD hub, 21h
- Front Tyre:S-Works Turbo Cotton, 320 TPI, 700x26mm
- Rear Tyre:S-Works Turbo Cotton, 320 TPI, 700x26mm
- Brakes:Shimano Dura-Ace R9270, hydraulic disc
- Handlebars:S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole
- Handlebar Tape:Supacaz Super Sticky Kush
- Headset:N/A
- Stem:S-Works SL, alloy, titanium bolts, 6-degree rise
- Saddle:Body Geometry S-Works Power, carbon fiber rails, carbon fiber base
- Seatpost:Roval Alpinist Carbon Seatpost
- Accessories:N/A
- Weight:Not available