2025 Specialized S-Works Aethos Red AXS Road Bike
While racing glory has its appeal, the Specialized S-Works Aethos celebrates the pure joy of riding. Designed without compromise, the Aethos delivers an unmatched balance of weight, ride quality, and timeless aesthetics. With one of the lightest production frames ever created, this bike is built for riders who appreciate elegance, efficiency, and emotional connection on every ride.
Engineered with a revolutionary approach to carbon layup, the Aethos eliminates unnecessary material while maintaining exceptional stiffness and compliance. The result is a road bike that excels equally on steep mountain climbs, flowing descents, and relaxed café rides—without the need for aggressive aero shaping or gimmicks.
Pure Riding Experience, Perfected
The FACT 12r carbon frame is the pinnacle of Specialized engineering, optimized using Rider First Engineered™ design to ensure consistent ride feel across all frame sizes. Combined with the latest SRAM RED AXS wireless drivetrain and a power meter–equipped crankset, the Aethos delivers precise shifting, effortless efficiency, and elite-level performance.
Rolling on Roval Alpinist CLX carbon wheels, the Aethos feels instantly responsive and incredibly smooth. At just 6.34 kg, this bike redefines what a modern road bike can be—minimalist, elegant, and thrilling to ride.
Key Highlights
- S-Works Aethos FACT 12r ultra-light carbon frame
- SRAM RED AXS 12-speed wireless electronic drivetrain
- Integrated SRAM RED AXS power meter
- Roval Alpinist CLX tubeless carbon wheelset
- S-Works Power saddle with Mirror technology
- Exceptional ride quality with timeless road bike design
| Frame | S-Works Aethos FACT 12r Carbon, Rider First Engineered™, threaded BB, flat-mount disc |
|---|---|
| Fork | S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Handlebars | S-Works Short & Shallow, 125mm drop, 75mm reach |
| Stem | Roval Alpinist alloy, titanium bolts, 6° rise |
| Bar Tape | Supacaz Super Sticky Kush |
| Saddle | S-Works Power with Mirror |
| Seatpost | Roval Alpinist Carbon Seatpost |
| Seat Binder | Specialized Alloy, titanium bolt |
| Shifters | NEW SRAM RED AXS, 12-speed |
| Front Derailleur | NEW SRAM RED AXS, braze-on |
| Rear Derailleur | NEW SRAM RED AXS, 12-speed |
| Crankset | NEW SRAM RED AXS Power Meter |
| Chainrings | 48 / 35T |
| Cassette | NEW SRAM RED XG-1290, 12-speed, 10-33T |
| Chain | NEW SRAM RED 12-speed |
| Bottom Bracket | SRAM DUB BSA 68 |
| Front Brake | NEW SRAM RED AXS hydraulic disc |
| Rear Brake | NEW SRAM RED AXS hydraulic disc |
| Front Wheel | Roval Alpinist CLX carbon, 21mm internal, 33mm depth |
| Rear Wheel | Roval Alpinist CLX carbon, 21mm internal, 33mm depth |
| Tires | S-Works Turbo 2BR, 700x28mm |
| Weight | 6.34 kg (size reference) |
Specifications are subject to change without notice.
