S-Works Aethos - Founder's Edition

Limited to 300 bikes globally, the Aethos Founder’s Edition is the lightest build on offer.When compared to the S-Works Aethos, this limited Founder’s Edition S-Works Aethos may seem like it just features a different handlebar—and while the Roval Alpinist, At 255 grams (110mm x 420mm) is one of the lightest out there, the Founder’s Edition S-Works Aethos features much, much more.

To start, each frame goes through one of the most meticulous painting processes we’ve ever done. The limited-edition brushed liquid silver paint is extremely difficult to apply and to ensure the utmost in quality, after each frame is painted, they are buffed by hand to achieve the brilliant brushed silver finish.
On the components side of things, the Founder’s Edition S-Works Aethos also leaves nothing more to desire. Founders Edition tires, saddle, and ultralight innertubes come together with the custom-finished CeramicSpeed bottom bracket to complement Shimano’s Dura-Ace Di2 disc brake groupset.
Ultimately, the Founder’s Edition S-Works Aethos features a level of exclusivity and attentiveness to detail that you’re unlikely to find elsewhere. This is a perfectly balanced, top-tier ride. It’s a revolution born of inspiration.
For once, we’re not in it to win. With Aethos, we stopped worrying about winning, or the way things are supposed to be done, and instead chased the greatest expression of ride quality ever made. Well, we did it, and in staying true to keeping that promise, we broke every design, ride, and race rule along the way. And we’re not sorry. Aethos: Break the Rules.
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.

Manual Downloads

2021 Aethos User Manual

Technical Specifications

ACCESSORIES

SWAT	Integrated cycle computer mount

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

COCKPIT

Handlebars	Roval Alpinist Cockpit, one-piece bar/stem combo, carbon
Tape	Supacaz Super Sticky Kush
Saddle	Body Geometry S-Works Romin Evo, Carbon Fiber Rails, Carbon Fiber Base
SeatPost	Roval Alpinist Carbon Seatpost
Seat Binder	Specialized Alloy, 30.0mm, titanium bolt

BRAKES

Front Brake	Shimano Dura-Ace R9170, hydraulic disc
Rear Brake	Shimano Dura-Ace R9170, hydraulic disc

DRIVETRAIN

Shift Levers	Shimano Dura-Ace Di2 Disc R9170
Front Derailleur	Shimano Dura-Ace Di2 R9150, braze-on
Rear Derailleur	Shimano Dura-Ace Di2 R9150, 11-speed
Cassette	SunRace, 11-speed, 11-32t
Crankset	Shimano Dura-Ace R9100, HollowTech 2, 11-speed, Dual-sided Powermeter, 52/36T
Bottom Bracket	68mm threaded, CeramicSpeed bearings
Chain	Shimano Dura-Ace, 11-speed

WHEELS & TIRES

Front Wheel	Roval Alpinist CLX, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 21h, DT Swiss Aerolite spokes
Rear Wheel	Roval Alpinist CLX, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
Front Tire	Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm
Rear Tire	Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm
Inner Tubes	Tubolito S-Tubo-Road, 42mm Presta-valve

* Specifications are subject to change without notice

Geometry

Aethos - Geometry

49 52 54 56 58 61

	49	52	54	56	58	61
Crank Length	165mm	170mm	172.5mm	172.5mm	175mm	175mm
Stem Length	80mm	90mm	100mm	100mm	110mm	110mm
Seatpost Length	300mm	300mm	360mm	360mm	360mm	360mm
Saddle Width	155mm	155mm	143mm	143mm	143mm	143mm
Handlebar Width	400mm	400mm	420mm	420mm	440mm	440mm
Reach	375mm	380mm	384mm	395mm	402mm	408mm
Top Tube Length, Horizontal	508mm	531mm	540mm	562mm	577mm	595mm
Stack	514mm	527mm	544mm	565mm	591mm	612mm
Wheelbase	973mm	975mm	978mm	991mm	1005mm	1012mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm
Front Center	574mm	577mm	579mm	591mm	606mm	613mm
BB Drop	74mm	74mm	72mm	72mm	72mm	72mm
BB Height	266mm	266mm	268mm	268mm	268mm	268mm
Seat Tube Angle	75.5°	74°	74°	73.5°	73.5°	73°
Head Tube Angle	71.75°	72.5°	73°	73.5°	73.5°	74°
Seat Tube Length	431mm	462mm	481mm	504mm	532mm	567mm
Head Tube Length	109mm	120mm	137mm	157mm	184mm	204mm
Bike Standover Height	705mm	728mm	748mm	769mm	796mm	824mm
Fork Rake/Offset	47mm	47mm	44mm	44mm	44mm	44mm
Fork Length, Full	369mm	369mm	369mm	369mm	369mm	369mm
Trail	63mm	58mm	58mm	55mm	55mm	52mm

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S-Works Aethos - Founder's Edition

Size Chart