Home > Bike Types > Road Bike

Specialized Launches Aethos 2: The Everyday Superbike Gets a Refined Evolution

AETHOS_SIDE_PROFILE_updated
19 Comments
Support us! Bikerumor may earn a small commission from affiliate links in this article. Learn More

Specialized just dropped the Aethos 2, the follow-up to a bike that redefined what an all-around(and good-looking) road bike could be. When the first Aethos arrived in 2020, it didn’t chase UCI weight limits or Tour de France podiums; it chased ride quality, balance, and pure road feel. A bike for the love of riding and aesthetics that every cyclist would love. The new Aethos 2 keeps that DNA but refines it with updated shaping, fresh carbon layups, and integration, making it even more appealing for the rider who values performance without sacrificing soul.

Aethos mountains speed BILLY CEUSTERS
All photos: Specialized

What’s New with Aethos 2?

At its core, the Aethos 2 remains true to its mantra: light, responsive, and timeless. Specialized didn’t overhaul it with radical aero tweaks or proprietary quirks. Instead, they doubled down on the formula that made the original so beloved, polishing the details.

AETHOS-PRO-DI2-SHDWSIL
  • Frame Shaping: Subtle refinements to tube profiles improve stiffness-to-weight while keeping that buttery, road-smoothing compliance.
  • Carbon Layup: A revised FACT carbon structure trims grams and improves consistency across frame sizes.
  • Integration: Internal routing is cleaner and offers easier serviceability compared to full aero platforms, no over-the-top gimmicks, just practical refinements.
  • Tire Clearance: Up to 35mm tires, giving the Aethos 2 room for modern all-road versatility.
Specialized Aethos II_BALANCEL

Claimed weights remain eye-watering. Depending on the build, the Aethos 2 still hovers at or below the UCI minimum of 6.8kg, making it one of the lightest production framesets available.

AETHOS-2_SIDE-BY-SIDE_BIRDEYES_0760 copy

Aethos 2 Builds & Pricing

The Aethos 2 is available in multiple trims, ranging from reasonably accessible builds to premium setups. For those looking to go off menu, there is a choose-your-own-adventure approach with Pro and S-Works level frame options. All available in not over the top, but elegant (and lightweight) paint jobs.

S-Works Aethos 2

At just 595 grams, the S-Works Aethos 2 frame holds the crown as the lightest production road frame in the world. But its purpose isn’t just weight, it’s to deliver that “bike disappears beneath you” ride quality that makes the Aethos such a rider’s bike. Built with FACT 12r carbon, it pairs with the all-new Roval Alpinist CLX III wheelset and the Roval Alpinist Cockpit II for a full top-tier package. The build features a complete SRAM Red AXS E1 drivetrain or a Shimano Dura-Ace build. Tires are S-Works Turbo TLR Race 28c mounted tubeless on the Roval rims. Small details include Sinc ceramic bearings, titanium fittings, and a Specialized S-Works Mirror saddle. The complete bike weighs a claimed 5.98 kg (size 56), an absurdly light figure for a disc road bike

  • SRAM Red AXS — $13,999 / €13,499 / £11,499 / AUD 19,900
  • Shimano Dura-Ace Di2 — $13,999 / €13,499 / £11,499 / AUD 19,900

Aethos 2 Pro

The Pro build takes the same rider-focused Aethos geometry and FACT 10r carbon frame (705g) and pairs it with either the Shimano Ultegra Di2 12-speed group or the SRAM Force AXS groupset. The cockpit and wheels are Roval Alpinist CL II wheels, matched with the Roval Alpinist Cockpit II bar/stem and an S-Works Power Pro Mirror saddle. Tires are again S-Works Turbo TLR Race 28c, tubeless-ready. At 6.73 kg (size 56), the Pro Di2 delivers a WorldTour-level weight and feel without the S-Works premium. Paint options include Gloss Red Sky / Chrome and Gloss Shadow Silver / Emerald Metallic

  • SRAM Force AXS — $8,499 / €8,499 / £7,249 / AUD 12,000
  • Shimano Ultegra Di2 — $8,499 / €8,499 / £7,249 / AUD 12,000

Aethos 2 Expert

The Aethos Expert rolls on a FACT 10r carbon frame and fork (705g for the frame), delivering that magic “disappears beneath you” ride quality with a geometry tuned for all-day performance and an increased stack for added comfort, similar to its Pro brethren.

Spec highlights include a full Shimano Ultegra Di2 R8100 12-speed group or SRAM Force AXS. The wheels are Roval C38 carbon wheels (21mm internal diameter), wrapped with S-Works Turbo 28c tires. The cockpit features a Roval Alpinist carbon handlebar, Specialized Pro SL alloy stem, and Roval Alpinist carbon seatpost, topped with a Body Geometry Power Expert saddle. At a claimed 7.12kg for a size 56, the Expert Di2 is light, efficient, and versatile, giving riders nearly all the performance of the Pro tier but with a build that’s tough enough for daily training, fondo grinds, and race-day starts

  • SRAM Force AXS — $6,999 / AUD 9,200 (N/A for EUR & GBP)
  • Shimano Ultegra Di2 — $6,599 / €6,299 / £5,499 / AUD 9,200

Framesets

  • S-Works Aethos Frameset — $5,499 / €5,499 / £4,999 / AUD 8,900
  • Aethos Frameset — $3,499 / €3,799 / £3,499 / AUD 5,500

Check out the full line here, Specialized.com

Subscribe
Notify of
guest

This site uses Akismet to reduce spam. Learn how your comment data is processed.

19 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
Eggs Benedict
Eggs Benedict
5 days ago

They increased the stack height which is nice.

GT777
GT777
5 days ago

Might be a typo on tire clearance, their manual says 35mm vice the 32mm listed here

Zach Overholt
Admin
5 days ago
Reply to  GT777

Yes, it was a typo. It is 35mm clearance. Good catch.

Chris
Chris
5 days ago

This is interesting. At this point I wonder if I should just buy a Crux, set it up 2x, and have 2 sets of wheels. One for gravel and one for road.

John Byrne
John Byrne
5 days ago

This bike had vibes—now it’s just… meh. That head tube looks like someone duct-taped a Red Bull can to it, and the D-spacers? Straight-up ugly. Tire clearance is cool, I’ll give it that, but the cables? Total fail.
Like, why even try to hide them if they’re just gonna peek out under the stem like a bad Photoshop job? It’s not aero, so the whole “stealth” thing just makes it look like they gave up halfway. Aethos used to be clean. Now it’s just trying too hard and missing the mark.

DefRyder
DefRyder
3 days ago
Reply to  John Byrne

Agreed, and it’s so absurdly overpriced that it’s not even funny. Are there really bikers that stupid enough to spend even more than 1/2 of what it is truly worth? It’s a friggin’ bicycle and no bicycle should cost more than $5,000, even for the most premium model.

But I guess Specialized knows that there are enough fools and suckers to pay into the brand & lifestyle so they can scream “look at me I’m on a $5,xxx+ Specialized (or other brand) bike!” at the local coffee shop or at the back of the start line of a club race/event on social media.

Whodee
Whodee
3 days ago
Reply to  DefRyder

“…no bicycle should cost more than $5,000, even for the most premium model.”

What a silly statement. I’m not saying Spec isn’t grossly overpriced, but there’s a lot of nice bikes being made that your arbitrary price cap wouldn’t cover the BOM and labor.

RedStar Cycles
RedStar Cycles
1 day ago
Reply to  DefRyder

“no bicycle should cost more than $5,000”

Yes Comrade

Joseph
Joseph
5 days ago

This is the first bike in a while that’s exciting to me. Integrating the bar/stem is interesting as I recall from the Tarmac SL8 whitepaper that the majority of aero gains on that platform came from the Rapide bar/stem, integrated setup, and fork. I know they aren’t calling this out on the Aethos 2, but I’m sure it was a thought. The taller headtube is great and one of the only complaints we had on the old Aethos was a short headtube.

I’ve been riding a 2019 Crux for years set up with 2×11 and it’s my everything bike. With road tires it’s around 16.5lbs and fits a max 40c tire. When the new Crux came out I was excited, but the geo strayed farther from the road geo I like and my 2019 has been flawless mechanically. I was wondering when a bike like this would be made.

Mike
Mike
4 days ago
Reply to  Joseph

I think the White Paper was a lot of marketing speak. Narrow handle bars will help regardless of the brand. Bike fit first and foremost for aero gains.

DrDarren
DrDarren
4 days ago

Well, I am rejoicing and so excited by this bike! And I have put almost 20,000km on my Aethos 1 Pro. Anyone want a used Aethos 1 Pro?!

It addresses all my wishes, integrated cables (yay!), taller stack and UDH, I will almost certainly go SRAM Red EXPLR and 1x, like one of the new Cervelo R5 options. Shame there is no 1x option as a full build. My current Aethos is Red 1x but the gear range is just that bit too narrow to be perfect.

And how anyone can complain about a straight head tube but overlook external cables and ugly ports is beyond me. This is sheer beauty!

Evan
Evan
4 days ago

when you change the stack height of a bike, it doesn’t just change the user’s hip angle, it also affects weight distribution and therefore handling. Normally endurance bikes that have higher stack also have a slacker hta (/more trail). This bike retains a very racy geometry which is fine, but increases frame stack, which makes me wonder who it’s for. If you want or need to sit more upright then a slacker front end tends to be easier to control.

Jonas
Jonas
3 days ago
Reply to  Evan

I think Specialized did exactly the right thing here. Endurance bikes are boring and feel slow, which is probably also why they do not sell particularly well anymore.

Evan
Evan
1 day ago
Reply to  Jonas

Have you ridden a racy geometry with a lot of spacers? Feels absolutely scary.

If you want exciting handling but lack flexibility it’s probably better to shorten the cranks than raise the cockpit.

Bruce
Bruce
1 day ago
Reply to  Evan

Why would you move your COG back with higher stack and also lengthen the front end via a slacker head angle, further reducing weight on the front wheel? That would be a poor-handling road bike.

Evan
Evan
1 day ago
Reply to  Bruce

Is that not what the industry has done for ages when designing endurance bikes?

My experience tells me that the more responsive the handling, the more weight I need on the front wheel. Conversely, if I want to sit up and thus move my COG back, I need more stability ie. lower sensitivity to steering inputs.

seraph
seraph
2 days ago

Oddly enough, no one is talking about how the new Aethos 2 has a UDH hanger now. A sign of things to come…

Caspar
Caspar
1 day ago

Not to forget the longer front end to get rid of toe overlap.

Subscribe Now

Sign up to receive BikeRumor content direct to your inbox.