Specialized S-Works Aethos SRAM RED eTap AXS

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.

Top off the world’s lightest frame with SRAM’s 12-speed RED eTAP AXS 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, 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. We’ve 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.

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

Saddle
Body Geometry S-Works Power, carbon fiber rails, carbon fiber base

Seatpost
Roval Alpinist Carbon Seatpost

Stem
S-Works SL, alloy, titanium bolts, 6-degree rise

Handlebars
S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole

Seat Binder
Specialized Alloy, 30.0mm, titanium bolt

Tape
Supacaz Super Sticky Kush

Rear Brake
SRAM Rival 1, hydraulic disc

Front Brake
SRAM Rival 1, hydraulic disc

Bottom Bracket
SRAM DUB BSA 68

Chain
SRAM RED 12-speed

Crankset
SRAM RED AXS Power Meter

Cassette
SRAM RED XG-1290, 12-speed, 10-33t

Rear Derailleur
SRAM RED eTAP AXS, 12-speed

Front Derailleur
SRAM RED eTAP AXS, braze-on

Shift Levers
SRAM Red eTap AXS

Chainrings
Steel, 30T

Inner Tubes
700x20-28, 48mm Presta Valve

Front Wheel
Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 21h, DT Swiss Aerolite spokes

Rear Wheel
Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes

Front Tire
S-works Turbo 2BR, 700x28mm

Rear Tire
S-works Turbo 2BR, 700x28mm

* Specifications are subject to change without notice

*All measurements in degrees or millimetres

The sizing chart is a great place to start when picking your next bike but everyone will fit a bike a bit differently. Your torso, arm, and leg lengths all play into what size of bike you may need. Plus, there's your own personal preference.

We always recommend swinging by the shop and taking the bike that you're looking for a spin to see how it feels. If you're unable to come by, looking at the geometry of your current bike and comparing it is a good place to start. If you have any further questions, our customer service team is there to help.