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Specialized
Specialized Aethos S-Works Frameset

Specialized Aethos S-Works Frameset

4.7(52 ratings)

Best price now

$3,100.00at KingcyclesportObserved at 10:27 AM

22% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Our take on the Specialized Aethos S-Works Frameset

The Aethos S-Works is Specialized's ultralight road frameset, built from Fact 12R carbon and claimed at 585 g for a 56 cm frame. It uses a traditional round-tube shape, flat-mount disc brakes and electronic-only cable routing, and it is aimed at riders who want a light climbing and racing platform rather than an aero bike. At $3,100 at Kingcyclesport as of November 7, 2026, it sits at the low end of what this frameset has recently sold for across the four stores listing it new.

Best forWeight-focused road racers and climbersRiders building a light bike from a frame upOwners of electronic groupsetsCyclists who prefer classic round-tube looks
Pros
  • Very light Fact 12R carbon frame, claimed 585 g in 56 cm
  • Composed on technical descents and quick to accelerate uphill
  • Traditional round-tube design keeps the build simple and clean
  • Flat-mount disc standard with 12x142 mm rear thru-axle
  • Rider First Engineered sizing across the range
Cons
  • Electronic-only routing rules out mechanical groupsets
  • Frameset-only sale: no wheels, bars or groupset included
  • No aero tube shaping, so it gives away drag to aero frames
  • Premium price for a frame with no components

Specialized Aethos S-Works Frameset prices at every store

  • eBayNew

    In stock

    $4,000.00Observed at 10:27 AM
    Visit eBay
  • proteusbicycles.comNew

    In stock

    $4,125.00Observed at 10:27 AM
    Visit proteusbicycles.com
  • KingcyclesportNew

    Availability unknown

    $3,100.00Observed at 10:27 AM
    Visit Kingcyclesport
  • Rubber Soul BicyclesNew

    Availability unknown

    $3,999.99Observed at 10:27 AM
    Visit Rubber Soul Bicycles

Also available at

  • Centracycles StoreCheck price at Centracycles Store
  • Competitive CyclistCheck price at Competitive Cyclist
  • Mack Cycle and FitnessCheck price at Mack Cycle and Fitness
  • Victory Velo Bike ShopCheck price at Victory Velo Bike Shop

Store links may earn us a commission.

Specialized Aethos S-Works Frameset price history

Lowest price we've seen: $2,650.00 on Nov 7 at Centracycles Store. Tracked across 8 stores since Nov 7.

What reviewers say

  • 4.7 / 552 ratings

Riders rate the Aethos S-Works highly, with 4.7 out of 5 from 52 ratings. Owners praise its low weight and lively climbing feel, and most complaints center on the cost and the electronic-only cable routing.

What people mention
  • WeightPraisedOwners say the frame is exceptionally light and makes climbs feel easier.
  • HandlingPraisedRiders describe stable, confident behavior on technical descents.
  • PriceCriticisedBuyers call the frameset expensive relative to complete bikes.
  • Cable routingMixedThe electronic-only routing is clean but shuts out mechanical groupsets.
  • Build qualityPraisedOwners report a well-finished frame with a classic round-tube look.

Specifications

Suspension Type
Rigid
Intended Use
Racing
Usage Terrain
Road
Brake Type
Disc brake
Brake Highlights
Flat-mount disc
Wheel Size
700C
Wheel Hubs
12x142mm thru-axle (Rear)

Questions and answers

Is the Aethos S-Works frameset worth $3,100?
At $3,100 at Kingcyclesport as of November 7, 2026, it is at the low end of its recent range. It makes sense if you want one of the lightest production road frames and already have an electronic groupset and wheels.
What is included in the frameset?
You get the Fact 12R carbon frame and carbon fork. Wheels, handlebar, seatpost and groupset are not included, so budget for a full build.
Can I use a mechanical groupset on it?
No. The frame has electronic cable routing only, so it is built for electronic shifting systems.
How much does the frame weigh?
Specialized claims 585 g for the S-Works frame in size 56 cm. Complete build weight depends on your components.
What brakes and wheels does it take?
It uses flat-mount disc brakes and 700C wheels with a 12x142 mm rear thru-axle.
When is the best time to buy it?
Frameset prices move with sales and model-year changes. Track the price history here and compare all four stores before buying.
Where is the Specialized Aethos S-Works Frameset cheapest?
At Kingcyclesport, for $3,100.00, 22% under what the other stores charge, as of our latest check.
What do buyers say about the Specialized Aethos S-Works Frameset?
Rated 4.7 out of 5 from 52 ratings.
Where can I buy the Specialized Aethos S-Works Frameset?
8 stores we checked sell it, including Rubber Soul Bicycles, proteusbicycles.com, Kingcyclesport, eBay, Centracycles Store.

Stores we've priced the Specialized Aethos S-Works Frameset at

  • Competitive Cyclist deals and prices
  • Kingcyclesport deals and prices

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Riding Style
Descending technical descents, Accelerating up steep pitches, Racing
Age Range
ADULT
Suitable Terrain
Road
Typical Users
UNISEX
Department
UNISEX
Bike Type
Road bike
Design Material
Carbon fiber
Weight
585 g (S-Works, size 56cm)
Design Highlights
Electronic cable routing only
Frame Material
Fact 12r Carbon, Carbon fiber
Frame Type
Frameset
Frame Fork Material
Carbon Fiber
Frame Shape
Traditional road shape (reinvented)
Wheelbase
991 mm (Size 56)
Height
160mm (HT)