Free Premier Delivery

Specialized S-Works Aethos Red AXS Road Bike 2025

£11,399.00 - £12,000.00
Find My Size

Check to see if we have it in stock - just select your colour and size.

We're sorry, but unfortunately, we're unable to ship this item to your country

Free Premier Bike Delivery

Have this bike hand-delivered free of charge by a qualified mechanic to your doorstep.  For a limited time, this bike is available via our Premier Bike Delivery free of charge.

View all eligible bikes

Product ID: 1813964

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 road 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?

sigma sports expert advice
Expert Advice

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.

sigma sports cycle schemes
Cycle to Work Schemes

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.

Bike Delivery Options

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.

laka insurance
Laka Insurance

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.