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Specialized S-Works Aethos Frameset - 2021

Specialized S-Works Aethos Frameset
  • Color: Gloss Forest Green/Gold Pearl/Flake Silver
  • Color: Gloss Snake Eye Chameleon/Monocoat Black
  • Color: Satin Carbon/Gloss Black Chrome
  • Color: Satin Carbon/Jet Fuel
  • Color: Satin Carbon/Red GoldChameleon/Bronze Foil
  • Color: Satin Flake Silver/Red GoldChameleon Tint/BrushedChrome
Please select options


Don’t get us wrong, we’re all for racing. Grand Tour top steps, Classic’s Monuments—they’re in our DNA. But sometimes riding simply to ride, riding for the love of riding, is just what we 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.

- 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, we’ve 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 we’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 we’ve 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, we 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—everything in pursuit for the perfect ride.


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
Axles Front: 100 x 12mm thru axle
Rear: 142 x 12mm thru axle
Seat Post Roval Alpinist Carbon Seatpost

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Satin Carbon/Gloss Black Chrome / 52cm 888818672110 77221-0352 AET334998072
Satin Carbon/Gloss Black Chrome / 54cm 888818672127 77221-0354 AET337476524
Satin Carbon/Gloss Black Chrome / 56cm 888818672134 77221-0356 AET334525246
Satin Carbon/Gloss Black Chrome / 58cm 888818672141 77221-0358 AET333224458
Satin Carbon/Jet Fuel / 49cm 888818672165 77221-0449 AET292195349
Satin Carbon/Jet Fuel / 52cm 888818672172 77221-0452 AET296886852
Satin Carbon/Jet Fuel / 56cm 888818672523 77221-0456 AET296656456
Satin Carbon/Jet Fuel / 58cm 888818672530 77221-0458 AET294649218