At just 595 grams, the S-Works Aethos 2 is the lightest production road frame in the world. But that was never the point. Built by breaking the rules of racing to deliver pure road riding bliss, Aethos 2 is engineered to disappear beneath you. Impossibly responsive, supple, and sublime. Now with increased tire clearance and data-based fit-enhancing geometry, it brings that transcendent ride feel to more riders than ever. Aethos 2 breaks the rules, for the love of the ride. Use - Performance Road Riding
Frameset - 595g FACT 12r Frame / FACT 12r Fork
Fit - Performance Endurance
Seatpost - Roval Alpinist
At just 595 grams, the S-Works Aethos 2 is the lightest production road frame in the world. But that was never the point. Built by breaking the rules of racing to deliver pure road riding bliss, Aethos 2 is engineered to disappear beneath you. Impossibly responsive, supple, and sublime. Now with increased tire clearance, refined components, and data-based fit-enhancing geometry, it brings that transcendent ride feel to more riders than ever. Aethos 2 breaks the rules, for the love of the ride. Use - Performance Road Riding
The 2026 Specialized Aethos 2 is an updated lightweight road bike with a focus on pure riding feel and comfort, featuring a more relaxed geometry, increased tire clearance, and fully integrated cables. The 2026 model has a 15mm taller stack height, a 7mm longer wheelbase, and 35mm of tire clearance to accommodate a wider range of conditions and improve stability and comfort. It is designed for riders who prioritize a comfortable, responsive, and sublime ride over aerodynamics and racing rules.
Key updates and features
- Geometry: A 15mm increase in stack height and a 7mm longer wheelbase result in a more relaxed riding position and increased stability at speed. A 0.5° flatter head tube angle enhances handling.
- Tire clearance: Increased to 35mm, allowing for wider, more comfortable tires for versatility on various road surfaces.
- Cabling: Fully integrated internal cables provide a clean aesthetic.
- Frame: The FACT 10r carbon frame has a claimed weight of 705g (Pro model) or 595g (S-Works model).
- Components: Models feature new components like the Roval Alpinist cockpit and wheels, and have options for different groupsets, such as SRAM Force or Shimano Ultegra.
- UDH compatibility: The frame is UDH compatible, with a custom-designed hanger that saves weight.
Who it's for
- Riders who want a lightweight bike that prioritizes ride feel and comfort over pure aerodynamics.
- Cyclists looking for a versatile road bike that can handle rougher roads and longer distances.
- Those who prefer a classic aesthetic with modern performance features, such as integrated cables and modern geometry.