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S-Works Aethos – Campagnolo LTD

S-Works Aethos – Campagnolo LTD

We deliver! Just say when and how.

The lightest production road bike in the world, a bike built for the pure love of riding, the latest S-Works Aethos LTD is breaking the rules all over again. A celebration of Specialized heritage, only 300 of these individually numbered bikes will ever be made available worldwide. Each is unique with hand-dipped paint, and each is built with the all-new Campagnolo Super Record EPS group and Hyperon Wheels. The S-Works Aethos LTD with Campagnolo Super Record EPS raises the bar on what high-end road bike can be.

Creating the lightest production road bike frame in the world - 585 grams - took every ounce of our 49 years of experience, so it’s a fitting canvas to celebrate the founding of Specialized. In 1973 it was a love of riding that inspired Mike Sinyard to sell his VW bus, pack up his bike, and go ride in Italy. It was on that trip that Mike fell in love with the quality, the beauty, and the ride of Italian components. He made it his mission to bring them to riders in the US, and Specialized Bicycle Components was born. Combining the Aethos with the pinnacle of Italian components pays homage to Mike’s love of riding and Italy’s riding culture.

Technical Specifications



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



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


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


Supacaz Super Sticky Kush


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


Roval Alpinist Carbon Seatpost

Seat Binder

Specialized Alloy, 30.0mm, titanium bolt


Front Brake

CAMPAGNOLO Super Record, Hydraulic Disc

Rear Brake

CAMPAGNOLO Super Record, Hydraulic Disc


Shift Levers


Front Derailleur

CAMPAGNOLO Super Record, Braze-on

Rear Derailleur

CAMPAGNOLO Super Record, 12-speed


CAMPAGNOLO Super Record, 12-speed, 10-29t


CAMPAGNOLO Super Record, 12-speed



Bottom Bracket



CAMPAGNOLO Super Record, 12-speed

Wheels & Tires

Front Wheel

CAMPAGNOLO Hyperon Ultra, 21mm internal carbon rim, 37mm depth, tubeless ready

Rear Wheel

CAMPAGNOLO Hyperon Ultra, 21mm internal carbon rim, 37mm depth, tubeless ready

Front Tire

S-works Turbo 2BR, 700x28mm

Rear Tire

S-works Turbo 2BR, 700x28mm

Inner Tubes

Turbo Ultralight, 48mm Presta valve

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.


Crank Length170mm170mm172.5mm172.5mm175mm175mm
Handlebar Width380mm400mm420mm420mm440mm440mm
Stem Length80mm90mm100mm100mm110mm110mm
Saddle Width155mm155mm143mm143mm143mm143mm
Seatpost Length300mm300mm360mm360mm360mm360mm
Top Tube Length, Horizontal508mm531mm540mm562mm577mm595mm
Bike Standover Height705mm728mm748mm769mm796mm824mm
Seat Tube Length431mm462mm481mm504mm532mm567mm
Seat Tube Angle75.5°
Head Tube Length109mm120mm137mm157mm184mm204mm
Head Tube Angle71.75°
BB Height266mm266mm268mm268mm268mm268mm
BB Drop74mm74mm72mm72mm72mm72mm
Fork Length, Full369mm369mm369mm369mm369mm369mm
Fork Rake/Offset47mm47mm44mm44mm44mm44mm
Front Center574mm577mm579mm591mm606mm613mm
Chainstay Length410mm410mm410mm410mm410mm410mm

Accidentally Illegal

We broke the rules of manufacturing to create ride quality beyond imagination. To do it, we had to create the lightest production road frame ever made - just 585 grams. If you hold a UCI license, our S-Works Aethos is too light to race, so our apologies. To everyone else, you’re welcome.

Unparalleled Ride Quality

By studying the flexing and breathing of carbon fiber, we uncovered groundbreaking findings about how forces flow through a frame. This new understanding unlocked another level of ride quality and confidence. Attack a climb, rail a descent, and in just a few pedal strokes, you’ll feel the difference.

Born in Italy, Raised in California

With the S-Works Aethos LTD featuring all-new Campagnolo Super Record Wireless and its hand-dipped paint, we’re celebrating the vital role that our passion for Italian craftsmanship played in the founding of Specialized Bicycle Components in 1974. Only 300 of these one-of-a-kind bikes will ever be made available worldwide.

Voted Best Brand 5 Years in a Row

#1 Again: 2023 Gran Fondo Awards

The riders have spoken! For the fifth year in a row, Specialized has been crowned the #1 “Drop Bar Bike Brand” in the prestigious Gran Fondo Best Brand Awards for 2023. We innovate for riders, and year after year, our bikes are loved by the most discerning riders. Thank you!

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