S-Works Aethos Frameset

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Don’t get us wrong, we’re all for racing. Grand Tour top steps, Classic’s Monuments—they’re…

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The lightest disc road frame ever: The Specialized Aethos

Product Details

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.

And with this frame set, you have the perfect canvas to begin creating your dream 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.

Technical Specifications

Cockpit

SeatPost

Roval Alpinist Carbon Seatpost

Seat Binder

Specialized Alloy, 30.0mm, titanium bolt

Frameset

Frame

S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc

Suspension

Fork

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

Weight

1.24 kg (2 lb, 11.7 oz)

Weight Size

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

	49	52	54	56	58	61
Seatpost Length	300mm	300mm	360mm	360mm	360mm	360mm
Reach	375mm	380mm	384mm	395mm	402mm	408mm
Head Tube Angle	71.75°	72.5°	73°	73.5°	73.5°	74°
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm
Top Tube Length, Horizontal	508mm	531mm	540mm	562mm	577mm	595mm
Seat Tube Angle	75.5°	74°	74°	73.5°	73.5°	73°
Stack	514mm	527mm	544mm	565mm	591mm	612mm
Seat Tube Length	431mm	462mm	481mm	504mm	532mm	567mm
BB Drop	74mm	74mm	72mm	72mm	72mm	72mm
Bike Standover Height	705mm	728mm	748mm	769mm	796mm	824mm
Trail	63mm	58mm	58mm	55mm	55mm	52mm
Fork Length, Full	369mm	369mm	369mm	369mm	369mm	369mm
Head Tube Length	109mm	120mm	137mm	157mm	184mm	204mm
BB Height	266mm	266mm	268mm	268mm	268mm	268mm
Fork Rake/Offset	47mm	47mm	44mm	44mm	44mm	44mm
Front Center	574mm	577mm	579mm	591mm	606mm	613mm
Wheelbase	973mm	975mm	978mm	991mm	1005mm	1012mm