Specialized S-Works Aethos Dura Ace Di2 | Road Bike

Sometimes riding simply to ride, riding for the love of riding, is just what you need. And this is what the Specialized 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, 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 have 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 Specialized 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. Specialized 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.

SPECIFICATIONS
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
FRONT WHEEL – Roval Alpinist CLX II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval LFD hub, 21h, DT Swiss Aerolite spokes
REAR WHEEL – oval Alpinist CLX II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval LFD hub, 24h, DT Swiss Aerolite spokes
FRONT TIRE – S-works Turbo 2BR, 700x28mm
REAR TIRE – S-works Turbo 2BR, 700x28mm
CRANKSET – Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiiis Dual PRECISION 3+ Pro Powermeter, with Apple Find My
CHAINRING – 52/36T
BOTTOM BRACKET – Shimano Dura-Ace, BB-R9100
FRONT DERAILLEUR – Shimano Dura-Ace Di2 R9250, braze-on
REAR DERAILLEUR – Shimano Dura-Ace Di2 R9250, 12-speed
SHIFT LEVER – Shimano Dura-Ace Di2 R9270, hydraulic disc
CASSETTE – Shimano Dura-Ace, 12-speed, 11-30t
CHAIN – Shimano XTR M9100, 12-speed w/ quick link
FRONT BRAKE – Shimano Dura-Ace 9200, hydraulic disc
REAR BRAKE – Shimano Dura-Ace 9200, hydraulic disc
HANDLEBAR – S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole
STEM – S-Works SL, alloy, titanium bolts, 6-degree rise
SEAT POST – Roval Alpinist Carbon Seatpost
SADDLE – Body Geometry S-Works Power, carbon fiber rails, carbon fiber base