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2009939 / 54293373780314

Product Details

Good condition approved used bike with some cosmetic damage to the chainstaysm rear derailleur and shifters

Specialized S-Works Aethos RED eTap AXS 12-Speed Disc Road Bike 2021

Bike builds don't get much lighter than this and the Specialized S-Works Aethos Disc Road Bike pairs a FACT 12r carbon frameset with SRAM's flagship electronic RED eTap AXS 12-Speed groupset and Roval's lightest Alpinist CLX wheels.

A bike engineered to create the perfect ride, the Aethos breaks the UCI weight lower limit and is aimed at riders that may race, but wish for something that delivers performance and rides beautifully when off the circuit. The frame alone weighs an incredibly low 588 grams in a size 56, with the full build sitting at 6kg. The updated tubes and carbon layup are responsible for this, minimising material while enhancing stiffness, stability and integrity.

The geometry and fit are borrowed from the Tarmac SL7, so this is a bike still designed to feel aggressive, racy and responsive, so you're losing nothing in performance and ride feel in the quest for low weight. Rider-First Engineered™ design that's used across the Specialized range ensures all frames offer the same positive characteristics.

12-speed SRAM RED eTap components perfect the shifting experience and bring powerful hydraulic, all-condition braking that's confidence-inspiring at speed and on wet roads. There's even a crank-based power meter included, bringing a new dimension to your training. The aforementioned Alpinist wheels have a carbon rim, AeroFlange hubs and weigh only 1248 grams, delivering strength, stiffness and smooth-rolling. Finally, a Roval Alpinist carbon seatpost offers plenty of adjustabilities to dial in your fit.

Read more about the bikes in our Specialized S-Works Aethos article.

 

  • Certified Quality & Peace of Mind
    Every bike is meticulously inspected to the highest safety standards and comes with a one-year warranty*, ensuring reliability and performance you can trust.
  • Premium Bikes, Lower Prices
    Own a high-end bike for less – get access to top-tier brands and models at a fraction of the cost, making performance cycling more affordable.
  • Sustainable & Eco-Friendly Choice
    Choosing a pre-owned bike helps reduce waste and extends the life of quality bicycles, making it a greener way to ride.
  • Hassle-Free Trade-In & Upgrade
    Easily part-exchange your old bike for an upgrade, making it simple to switch, save, and keep riding the best bike for your needs

Approved Used Warranty Information

Features
  • Frame: Specialized S-Works Aethos Carbon 12R, 2021, size 54cm
  • Fork: S-Works Aethos Carbon Fork
  • Stem: Roval Alpinist Carbon One Piece Bar/Stem, 100mm -6°
  • Handlebar: Roval Alpinist Carbon One Piece Bar/Stem, 40cm
  • Levers/Shifters: SRAM Red Hydraulic, 160mm rotor
  • Front Derailleur: SRAM Red AXS 2x12 speed, braze-on
  • Rear Derailleur: SRAM Red AXS 12 speed
  • Cassette: SRAM Red CS-XG-1290-D1 10-33T 12 speed
  • Crankset: SRAM Red 2x 46/33T, 172.5mm cranks, Quarq power meter
  • Wheels: Roval Rapide CLX II Carbon TLR
  • Tyres: Continental Grand Prix 5000S TR, sealant installed
  • Saddle: S-Works Body Geometry Power, Carbon Rails and Base
  • Seatpost: Roval Alpinist Carbon Seatpost
  • Pedals: Available to be purchased separately
Specifications
Model
S-Works Aethos
Battery [Maker]
SRAM
Brakes [Kind]
Hydraulic Disc
Brakes [Maker]
SRAM
Brakes [Model]
Red Hydraulic
Cassette [Gearing]
10-33
Cassette [Maker]
SRAM
Cassette [Model]
CS-XG-1290-D1
Chainring [Gearing]
46–33
Condition Grade
Good
Crank [Maker]
SRAM
Crank [Model]
RED AXS
E-Bike
No
Family
Aethos
FD [Maker]
SRAM
FD [Model]
RED AXS
Fenders Mounts
No
Fork [Axle Type]
Thru-Axle
Fork [Brake Type]
Disc
Fork [Maker]
Specialized
Fork [Material]
Carbon
Fork [Model]
S-Works Aethos Carbon Fork
Fork [Wheel Size]
700c
Frame [Material]
Carbon
Frameset
No
Gearing [Configuration]
2x
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Kind]
Drop
Handlebar [Maker]
Roval
Handlebar [Material]
Carbon
Handlebar [Shape]
Drop bar
Power Meter [Maker]
Quarq
Power Meter [Model]
Quarq (SRAM Red crank-based)
Rack Mounts
No
RD [Maker]
SRAM
RD [Model]
RED AXS
Saddle [3D Printed]
No
Saddle [Maker]
Specialized
Saddle [Material]
Carbon
Seatpost [Maker]
Roval
Seatpost [Material]
Carbon
Shifters [Maker]
SRAM
Shifters [Model]
Red eTap AXS
Shifting
Electronic
Stem [Maker]
Roval
Stem [Material]
Carbon
Suspension Configuration
Rigid
Tires [Maker]
Continental
Wheels [Configuration]
Front+Rear
Wheels [Kinds]
Tubeless Ready
Wheelset [Maker]
Roval
Wheelset [Material]
Carbon
Wheelset [Model]
Rapide CLX II
Product code
2009939 / 54293373780314
Size Guide
—SMLXL
A380410455480
B570595627660
C----
D75.3°75°74.6°74.2°
E----
F65.5°65.5°65.5°65.5°
G105110140155
H432432432432
I1157117912121243
Specialized S-Works Stumpjumper (650b) Mountain Bikes Size Guide

If you fall between sizes, we recommend experienced riders selecting a smaller frame which will offer faster handling. A larger bicycle offers more stability.

Should you have any specific questions, please contact us for information and talk to one of our experienced members of staff.

A: Seat Tube (CTR-TOP)

B: Horizontal Top Tube

C: Actual Top Tube

D: Actual Seat Angle

E: Effective Seat Angle

F: Head Angle

G: Head Tube

H: Chainstay

I: Wheelbase

* All measurements in mm unless otherwise stated

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Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

Q & A

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About Specialized

Innovate or die.

Founded in California in 1974, Specialized began with a simple promise: serious riders deserve serious gear. Half a century later, the brand still funds its own wind tunnel, builds its own carbon, and tests every bike with the world's best so that you ride your own best.

The first production mountain bike. The first cycling-specific shoes. FACT carbon, the Win Tunnel, S-Works. Specialized has a habit of building the things the rest of cycling ends up copying.