The Aethos line promises three things: unprecedented weight savings perfectly-balanced ride quality and undeniable style. For the Aethos Pro we threw out the rulebook to create the ride of your life.

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
Specialized Aethos FACT 10r Carbon Rider-First Engineered™ Threaded BB 12x142mm thru-axle flat-mount disc

Fork
Specialized FACT Carbon 12x100mm thru-axle flat-mount disc

Bottom Bracket
Shimano BB-R9100

Stem
Specialized Pro SL alloy 4-bolt

Handlebar
Specialized S-Works Short & Shallow

Bar Tape
Supacaz Super Sticky Kush

Front Brake
Shimano Ultegra R8070 hydraulic disc

Rear Brake
Shimano Ultegra R8070 hydraulic disc

Brake Levers
Shimano Ultegra R8070

Front Derailleur
Shimano Ultegra Di2 R8050 braze-on

Rear Derailleur
Shimano Ultegra Di2 R8050 GS medium cage

Shift Levers
Shimano Ultegra R8070 11-speed

Chain
Shimano Ultegra 11-speed

Cassette
Shimano Ultegra R8000 11-30t 11-speed

Crankset
Shimano Ultegra R8000 HollowTech 2 52/36t 11-speed

Front Wheel
Roval Alpinist CL 21mm internal width carbon rim 33mm depth Win Tunnel Engineered DT for Roval 350 hub DT Swiss Aerolite spokes

Rear Wheel
Roval Alpinist CL 21mm internal width carbon rim 33mm depth Win Tunnel Engineered DT for Roval 350 hub DT Swiss Aerolite spokes

Front Tyre
Specialized S-Works Turbo 120 TPI folding bead BlackBelt protection 700x26mm clincher

Rear Tyre
Specialized S-Works Turbo 120 TPI folding bead BlackBelt protection 700x26mm clincher

Saddle
Specialized Body Geometry Power Pro hollow titanium rails carbon fibre base

Seatpost
Roval Alpinist carbon seatpost