Specialized S-Works Aethos SRAM Red AXS Road Bike 2025
While the allure of competitive cycling is undeniable, there's a distinct charm in the simple pleasure of riding purely for the love of it. Enter the Aethos, a bicycle that embodies this sentiment effortlessly. Renowned for its exceptional performance and status as the lightest frame available, the Aethos strikes a perfect balance between functionality and style.
Crafted with meticulous attention to detail, the Aethos frame offers an unparalleled riding experience. Its innovative design seamlessly blends lightweight construction with optimal ride comfort, making it ideal for tackling steep climbs or leisurely coffee rides alike. With groundbreaking engineering techniques and precision craftsmanship, the Aethos sets a new standard for cycling excellence, promising riders an unforgettable journey with every pedal stroke. From its reinvented traditional road shape to its state-of-the-art layup process, every aspect of the Aethos is meticulously crafted to deliver a sublime riding experience, making it more than just a bike—it's a testament to the artistry and passion of cycling.
Technical Specification
| Frame | S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc |
| Fork | S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Handlebars | S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole |
| Stem | Roval Alpinist, alloy, titanium bolts, 6-degree rise |
| Tape | Supacaz Super Sticky Kush |
| Saddle | S-Works Power with Mirror |
| Seatpost | Roval Alpinist Carbon Seatpost |
| Seat Binder | Specialized Alloy, 30.0mm, titanium bolt |
| Front Brake | NEW SRAM RED AXS, hydraulic disc |
| Rear Brake | NEW SRAM RED AXS, hydraulic disc |
| Shift Levers | NEW SRAM RED AXS, 12-speed |
| Front Derailleur | NEW SRAM RED AXS, braze-on |
| Rear Derailleur | NEW SRAM RED AXS, 12-speed |
| Cassette | NEW SRAM RED XG-1290, 12-speed, 10-33t |
| Crankset | NEW SRAM RED AXS Power Meter |
| Chainrings | 48/35 |
| Bottom Bracket | SRAM DUB BSA 68 |
| Chain | NEW SRAM RED 12-speed |
| Front Wheel | Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 21h, DT Swiss Aerolite spokes |
| Rear Wheel | Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes |
| Front Tire | S-works Turbo 2BR, 700x28mm |
| Rear Tire | S-works Turbo 2BR, 700x28mm |
| Inner Tubes | 700x20-28, 48mm Presta Valve |
| Weight | 6.34 kg (13 lb, 15.6 oz) |
| Weight Size | 56 |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Specialized S-Works Aethos Red AXS Road Bike 2025 Sizing
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.