Specialized S-Works Aethos Dura Ace Di2
Specialized S-Works Aethos Dura Ace Di2

Specialized S-Works Aethos Dura Ace Di2

Regular price $16,999.99 CAD Sale price$15,999.99 CAD Save $1,000.00 CAD

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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 Shimano’s legendary Dura-Ace Di2 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

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

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

    Roval Alpinist Carbon Seatpost

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

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

    Seat Binder
    Specialized Alloy, 30.0mm, titanium bolt

    Supacaz Super Sticky Kush

    Front Brake
    Shimano 105, Hydraulic disc

    Rear Brake
    Shimano 105, Hydraulic disc


    Shift Levers
    Shimano Dura-Ace R9270, hydraulic disc

    Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter

    Rear Derailleur
    Shimano Dura-Ace R9250, 12-speed

    Front Derailleur
    Shimano Dura-Ace R9250, braze-on

    Shimano Dura-Ace, 12-speed, 11-30t

    Bottom Bracket
    Shimano Dura-Ace, BB-R9100

    Shimano XTR M9100, 12-speed w/ quick link

    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

    Rear Tire
    S-works Turbo 2BR, 700x28mm

    Front Tire
    S-works Turbo 2BR, 700x28mm

    * Specifications are subject to change without notice

    49 52 54 56 58 61
    A | Reach 375mm 380mm 384mm 395mm 402mm 408mm
    B | Stack 514mm 527mm 544mm 565mm 591mm 612mm
    C | Head Tube Angle 71.75° 72.5° 73° 73.5° 73.5° 74°
    D | Front Center 574mm 577mm 579mm 591mm 606mm 613mm
    E | BB Drop 74mm 74mm 72mm 72mm 72mm 72mm
    F | Wheelbase 973mm 975mm 978mm 991mm 1005mm 1012mm
    G | Chainstay Length 410mm 410mm 410mm 410mm 410mm 410mm
    H | Head Tube Length 109mm 120mm 137mm 157mm 184mm 204mm
    I | Top Tube Length 508mm 531mm 540mm 562mm 577mm 595mm
    J | Seat Tube Angle 75.5° 74° 74° 73.5° 73.5° 73°
    K | Standover 705mm 728mm 748mm 769mm 796mm 824mm
    Size Height
    49 155 - 163cm
    52 163 - 170cm
    54 170 - 175cm
    56 175 - 180cm
    58 180 - 188cm
    61 188 - 196cm

    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.

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