Specialized

2021 Specialized S-Works Aethos Founder's Edition

Previous used estimate

$5,483 - $5,641

Actual value depends on condition, size, and local demand.

2021 Specialized S-Works Aethos Founder's Edition

Value Guide market data · 2021 Specialized S-Works Aethos Founder's Edition

12-month projected trend

14%

Direction and magnitude, not judgment

vs. category average

10%

Drops faster than category avg

Price over time - 2021 Specialized S-Works Aethos Founder's Edition

$14.5k$8.3k$2.0kMSRPMSRPYr 1Yr 2Yr 3Yr 4Yr 5Yr 6Yr 7Yr 7Yr 8Yr 9Yr 10Yr 11Yr 12Yr 13Yr 14Yr 14Yr 15Yr 16Yr 17Yr 18Yr 19Yr 20Yr 20

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All Aethos model years

Overview

About this bike

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. - 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. - Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind. We've also spec'd it with Roval's all-new Alpinist bar/stem combo and wheels, further saving weight and improving ride characteristics. Everything in pursuit for the perfect ride.

Specifications

Subtype
Performance
Category
Road
Component Fork
S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Component Hubs
Roval AFD hub
Component Rims
21mm internal width carbon rim, 33mm depth
Component Size
49cm, 52cm, 54cm, 56cm, 58cm, 61cm
Product Family
Aethos
Component Chain
Shimano Dura-Ace, 11-speed
Component Color
Satin Brushed Liquid Silver/Holographic
Component Frame
S-Works Aethos FACT 12r Carbon, Rider First Engineered, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc
Component Brakes
Shimano Dura-Ace R9170, hydraulic disc
Component Pedals
Sold separately
Component Saddle
Body Geometry S-Works Romin Evo, Carbon Fiber Rails, Carbon Fiber Base
Component Crankset
Shimano Dura-Ace R9100, HollowTech 2, 11-speed, Dual-sided Powermeter
Component Seatpost
Roval Alpinist Carbon Seatpost
Component Shifters
Shimano Dura-Ace Di2 Disc R9170
Component Handlebar
Roval Alpinist Cockpit, one-piece bar/stem combo, carbon
Component Wheel Set
Front: Roval Alpinist CLX, Win Tunnel Engineered Roval Alpinist CLX, Win Tunnel Engineered
Component Chainrings
52/36T
Component Front Tire
Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm
Component Tape Grips
Supacaz Super Sticky Kush
Component Bottom Bracket
Threaded BB
Component Rear Derailleur
Shimano Dura-Ace Di2 R9150, 11-speed
Component Front Derailleur
Shimano Dura-Ace Di2 R9150, braze-on
Component Accessories Extras
Integrated cycle computer mount
Component Cassette Freewheel
Shimano Dura-Ace R9170, hydraulic disc
Hubs
Roval AFD hub
Rims
21mm internal width carbon rim, 33mm depth
Crankset
Shimano Dura-Ace R9100, HollowTech 2, 11-speed, Dual-sided Powermeter
Pedals
Sold separately
Bottom Bracket
Threaded BB
Chain
Shimano Dura-Ace, 11-speed
Seatpost
Roval Alpinist Carbon Seatpost
Saddle
Body Geometry S-Works Romin Evo, Carbon Fiber Rails, Carbon Fiber Base
Handlebar
Roval Alpinist Cockpit, one-piece bar/stem combo, carbon
Front Derailleur
Shimano Dura-Ace Di2 R9150, braze-on
Rear Derailleur
Shimano Dura-Ace Di2 R9150, 11-speed
Accessories & Extras
Integrated cycle computer mount
Brakes
Shimano Dura-Ace R9170, hydraulic disc
Chainrings
52/36T
Fork
S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Frame
S-Works Aethos FACT 12r Carbon, Rider First Engineered, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc
Shifters
Shimano Dura-Ace Di2 Disc R9170
Tape/Grips
Supacaz Super Sticky Kush
Color
Satin Brushed Liquid Silver/Holographic
Size
61cm
Cassette/Freewheel
Shimano Dura-Ace R9170, hydraulic disc
Wheel Set
Front: Roval Alpinist CLX, Win Tunnel Engineered Roval Alpinist CLX, Win Tunnel Engineered
Front Tire
Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm

What to check when buying used

Inspection

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

Inspection

Drivetrain wear

Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.

Inspection

Service history

Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.

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