Aethos Expert


What if Specialized used every ounce of experience they’ve gained serving riders over the past 46 years and built a bike made simply for the love of riding? The Aethos is designed to straddle the line between perfect ride quality, extreme lightweight, and undeniable style. The Aethos Expert model is no exception.

With quick-shifting, low-maintenance Ultegra Di2 electronic shifting and hydraulic disc brakes paired with bomb-proof DT Swiss R470 Disc wheels, you have the perfect steed to excite you out on the road.

  • 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, Specialized 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 they’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 Specailized 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, they 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. Specailized also spec’d it with Roval’s all-new Alpinist carbon seatpost further saving weight and improving ride characteristics. Everything in pursuit for the perfect ride.


FRAMESET -- Aethos FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc; FACT Carbon fork, 12x100mm thru-axle, flat-mount disc

HANDLEBARS -- Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach

STEM -- Specialized Pro SL, alloy, 4-bolt

TAPE -- Supacaz Super Sticky Kush

SADDLE -- Body Geometry Power Expert, Hollow Titanium Rails

SEATPOST -- Roval Alpinist Carbon Seatpost

BRAKES -- Shimano Ultegra R8070, hydraulic disc

SHIFT LEVERS Shimano Ultegra Di2 Disc R8070

DERAILLEURS -- Front: Shimano Ultegra Di2 R8050, braze-on; Rear: Shimano Ultegra Di2 R8050, GS medium cage

CRANKSET -- Shimano Ultegra R8000, HollowTech 2, 11-speed

CHAIN -- Shimano Ultegra, 11-speed

WHEELS -- DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h

TIRES -- S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm

INNER TUBES -- Turbo Ultralight, 48mm Presta valve

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