Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Specialized
2021 Specialized S-Works Aethos Founder's Edition
Value Guide market data · 2021 Specialized S-Works Aethos Founder's Edition
12-month trend
14%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Price over time - 2021 Specialized S-Works Aethos Founder's Edition
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Aethos model years
2021 S-Works Aethos Founder's Edition lineup
Overview
About this bike
2021 Specialized S-Works Aethos Founder's Edition value depends on condition, original build, frame material, service history, and current buyer demand.
Specifications
Frameset
- 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
Drivetrain
- Groupset
- 2021 Specialized S-Works Aethos Founder's Edition
- Crankset
- Shimano Dura-Ace R9100, HollowTech 2, 11-speed, Dual-sided Powermeter
- Bottom Bracket
- Threaded BB
- Chain
- Shimano Dura-Ace, 11-speed
- Front Derailleur
- Shimano Dura-Ace Di2 R9150, braze-on
- Rear Derailleur
- Shimano Dura-Ace Di2 R9150, 11-speed
- Chainrings
- 52/36T
- Shifters
- Shimano Dura-Ace Di2 Disc R9170
- Cassette/Freewheel
- Shimano Dura-Ace R9170, hydraulic disc
Brakes
- Brakes
- Shimano Dura-Ace R9170, hydraulic disc
Cockpit
- Seatpost
- Roval Alpinist Carbon Seatpost
- Saddle
- Body Geometry S-Works Romin Evo, Carbon Fiber Rails, Carbon Fiber Base
- Handlebars
- Roval Alpinist Cockpit, one-piece bar/stem combo, carbon
- Tape/Grips
- Supacaz Super Sticky Kush
Wheels & Tires
- Hubs
- Roval AFD hub
- Rims
- 21mm internal width carbon rim, 33mm depth
- Tires
- Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm
- Wheels
- Front: Roval Alpinist CLX, Win Tunnel Engineered<br>Roval Alpinist CLX, Win Tunnel Engineered
- Spokes
- Front: 21h, DT Swiss Aerolite spokes<br>Rear: 24h, DT Swiss Aerolite spokes
Pedals
- Pedals
- Sold separately
Accessories
- Accessories & Extras
- Integrated cycle computer mount
- Color
- Satin Brushed Liquid Silver/Holographic
Weight & Sizing
- Size
- 49cm / 52cm / 54cm / 56cm / 58cm / 61cm
Frame sizing
XS4'10"-5'2"
S5'2"-5'6"
M5'6"-5'10"
L5'10"-6'2"
XL6'2"-6'6"
M highlighted as most common resale size. Sourced from catalog metadata.
Geometry
- Stack
- Varies by size
- Reach
- Varies by size
- Wheelbase
- Varies by size
Industry standard. Sourced from catalog metadata.
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Wheel condition
Inspect rims, hubs, spokes, and bearing play; ask about the tire age and any prior wheel rebuilds.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Carbon inspection
Tap test the frame, fork, seatpost, and bars for cracks; verify no impact damage near dropouts.
Inspection
Brake hoses & cables
Check hydraulic line bleed, cable housing wear, and confirm rotors are within spec.