Clear Icon
Search Icon
Clear Icon
Search Icon
Pinch Zoom Icon
Pinch to Zoom
Pinch Zoom Icon
Pinch to Zoom
Rotate Phone Icon
Rotate screen for larger image

2021 S-Works Aethos Frameset

5

3 Reviews

For once, we’re not in it to win. With Aethos, we stopped worrying about winning,…

Product Details

Add Icon

For once, we’re not in it to win. With Aethos, we stopped worrying about winning, or the way things are supposed to be done, and instead chased the greatest expression of ride quality ever made. Well, we did it, and in staying true to keeping that promise, we broke every design, ride, and race rule along the way. And we’re not sorry. Aethos: Break the Rules.

With this frameset, you have the perfect canvas 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.
  • 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.
  • 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—everything in pursuit for the perfect ride.
  • Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind—everything in pursuit for the perfect ride.

Technical Specifications

Add Icon

FRAMESET

Frame

S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc

SUSPENSION

Fork

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

COCKPIT

SeatPost

Roval Alpinist Carbon Seatpost

Seat Binder

Specialized Alloy, 30.0mm, titanium bolt

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

Geometry

Add Icon
495254565861
Seatpost Length300mm300mm360mm360mm360mm360mm
Stack514mm527mm544mm565mm591mm612mm
Reach375mm380mm384mm395mm402mm408mm
Head Tube Length109mm120mm137mm157mm184mm204mm
Head Tube Angle71.75°72.5°73°73.5°73.5°74°
BB Height266mm266mm268mm268mm268mm268mm
BB Drop74mm74mm72mm72mm72mm72mm
Trail63mm58mm58mm55mm55mm52mm
Fork Length, Full369mm369mm369mm369mm369mm369mm
Fork Rake/Offset47mm47mm44mm44mm44mm44mm
Front Centre574mm577mm579mm591mm606mm613mm
Chainstay Length410mm410mm410mm410mm410mm410mm
Wheelbase973mm975mm978mm991mm1005mm1012mm
Top Tube Length, Horizontal508mm531mm540mm562mm577mm595mm
Bike Standover Height705mm728mm748mm769mm796mm824mm
Seat Tube Length431mm462mm481mm504mm532mm567mm
Seat Tube Angle75.5°74°74°73.5°73.5°73°
Geometry

Rider Reviews

5

3 Reviews

 

…oh yeah - it's light too

…oh yeah - it's light too. If you follow most the press and the forums and the other things on the interwebs people are talking a lot about the weight and then about the price - in alternating order. This is the most fun and I'd say ""best"" bike I've ever owned and it's not because it's light. The uniqueness is how it feels on the ride: Compliant without being soft — playful but not nervous — elegant but extremely fast. The ride quality is exceptional. The bike is extremely comfortable to ride and the compliance adds traction which makes it an extremely confident descender. You can feel that you have more grip. The crazy things is that the compliance does not make the bike sluggish or soft when accelerating. The opposite: Putting down power almost feels like loading a spring that catapults you forward within milliseconds. I've ridden the bike with different wheel sets and can attribute this behavior clearly to the frame. The handling is quick but not nervous. The Geometry is essentially identical with the tarmac. This is NOT an endurance bike. It wants to go fast! And lastly: The bike is so much fun to ride. It feels light and elegant and quick and playful and is just a joy. …oh yeah - it's light too. All things considered the Tarmac is probably the faster bike (I've ridden the same climb on both bikes) and time and power were < 1% over 20 minutes and the Tarmac is more aero on the flat. But the Aethos is definitely more fun!


Name:
Cycle J.

Helpful?

Simply Amazing !

I've blown a ton of cash on bikes, you name it Madone SLR, Colnago, etc...It was nice to come back to a light and quick bike. The compliance is amazing and the ride quality is superb. The Gloss Forest green is darker then whats depicted, but in the light the deep rich metallic colors just shine. I would equate the color to British racing green. Also the bottom bracket...thank god we are moving back to easier standards. This bike checks allot of boxes for me including cool factor.


Name:
Aih312

Helpful?

Omg best bike everrrrrrr!!!!!!!

Great on climbs, got some KOMs on descents! Great bike! Best, dare I say???


Name:
Thomas

Helpful?