Description
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
Technical Specification
| 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 |
Size Guide
Specialized S-Works Aethos 2021 54cm - Approved Used Sizing
Delivery & Returns
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Why buy a used bike from Sigma Sports?
Every bike is meticulously inspected to the highest safety standards and comes with a one-year warranty*, ensuring reliability and performance you can trust.
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.
Choosing a pre-owned bike helps reduce waste and extends the life of quality bicycles, making it a greener way to ride.
Easily part-exchange your old bike for an upgrade, making it simple to switch, save, and keep riding the best bike for your needs.