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Aethos Pro - SRAM Force eTap AXS


2021 Aethos Pro - SRAM Force eTap AXS

The Aethos line promises three things: unprecedented weight savings, perfectly-balanced ride quality, and undeniable style. For the Aethos Pro we threw out the rulebook to create the ride of your life.

Technical Specifications

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Aethos FACT 10R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc



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



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


Specialized Pro SL, alloy, 4-bolt


Supacaz Super Sticky Kush


Body Geometry Power Pro, hollow titanium rails


Roval Alpinist Carbon Seatpost

Seat Binder

Specialized Alloy, 30.0mm


Front Brake

SRAM Force eTAP, hydraulic disc

Rear Brake

SRAM Force eTAP, hydraulic disc


Front Derailleur

SRAM Force eTAP AXS, braze-on

Rear Derailleur

SRAM Force eTAP AXS, 12-speed


SRAM CS XG 1270, 12-speed, 10-33t


SRAM FC Force DUB, 12-speed

Bottom Bracket



SRAM CN Force 12-speed


Front Wheel

Roval Alpinist CL, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes

Rear Wheel

Roval Alpinist CL, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes

Front Tire

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

Rear Tire

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

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.


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Crank Length165mm170mm172.5mm172.5mm175mm175mm
Handlebar Width380mm400mm420mm420mm440mm440mm
Stem Length80mm90mm100mm100mm110mm110mm
Saddle Width155mm155mm143mm143mm143mm143mm
Seatpost Length300mm300mm360mm360mm360mm360mm
Head Tube Length109mm120mm137mm157mm184mm204mm
Head Tube Angle71.75°72.5°73°73.5°73.5°74°
BB Height266mm266mm268mm268mm268mm268mm
BB Drop74mm74mm72mm72mm72mm72mm
Fork Length, Full369mm369mm369mm369mm369mm369mm
Fork Rake/Offset47mm47mm44mm44mm44mm44mm
Front Center574mm577mm579mm591mm606mm613mm
Chainstay Length410mm410mm410mm410mm410mm410mm
Top Tube Length, Horizontal508mm531mm540mm562mm577mm595mm
Bike Standover Height705mm728mm748mm769mm796mm824mm
Seat Tube Length431mm462mm481mm504mm532mm567mm
Seat Tube Angle75.5°74°74°73.5°73.5°73°

Rider Reviews

  • 5
  • 4 Reviews

Quickly Forgot What I Paid!

Bought the Aethos Pro, said no to the blush color 10 times, and then bought it anyways. Now I love it. This bike is like cheating!! It flies, it never seems to wear me out. Super smooth, fun, and has plenty of aerodynamics. The SRAMs are perfect for this bike. After a month I still have a smile on my face every single time. Think I may keep this bike for a long time. Sorry Specialized, it may be a while before my next purchase.



Specialized does it again

Just a week (and four rides) into the Aethos Pro but I can truly say I think Specialized has hit the mark again - at least for me. I've got a few older S-Works road bikes but admit I couldn't get over the 5 figure hump for an Aethos S-Works. But the Pro is everything I wanted. Compared to even my 2011 Roubaix, it is lighter and significantly more ""sprightly."" It's the best climbing bike I have ever ridden but is also plenty fast - particularly for quick punches. Still at almost 60 years old, I wanted a bike for what I call ""smell the roses"" rides and that is exactly what I think Specialized had in mind. Well done.

Slow C.


This bike makes me think about riding all the time

I picked this bike up from my local Specialized dealer about three weeks ago. I went in expecting to leave with a Tarmac SL7 but after talking to the sales guy he convinced me to take a demo ride...glad I did! Coming from a really firm Spanish climbing bike, the ride profile is night and day different in a great way. The handling and compliance make riding an effortless experience and the Roval Alpinist CL wheels compliment accordingly. The SRAM groupset and Alpinist cockpit are also solid. If I had to knit-pick one or two things it would be the lack of an included power meter and the Murano blue finish...it is good but not great. If you want a bike that is fun and has you wanting more, look no further.

Hazy D.