Aethos Pro Ultegra Di2 Specialized 2025 Gloss Champagne/Smoke

The Aethos range offers a triple guarantee

an exceptionally lightweight design, perfectly balanced riding characteristics, and undeniable style, and this Aethos Pro is no exception. Behind Aethos are billions of calculations with the sole aim of making every ride perfect.

This straightforward model, designed for comfortable long-distance riding, features Shimano's Ultegra Di2 group for precise and reliable shifting, and Roval Alpinist wheels with DT Swiss 350 hubs.

• The Aethos frame has been designed with the perfect combination of ride feel, lightness, and style: from accelerating on steep inclines and technical descents to all-day saddle comfort even on the longest rides, the Aethos hits the mark. But how? By reinventing the traditional shape of past road bikes, we have subtly altered these shapes to offer huge gains in stiffness and balance, all without compromising weight or durability. Add to this a completely new layering process that we have perfected over decades, and we have the lightest frame on the market (585 grams, S-Works, size 56cm). The Aethos is more than a new bike, it is the first of a new class.

• A lightweight frame is useless without confidence-inspiring handling characteristics, which is why we developed the Aethos to have the perfect balance between front and rear stiffness combined with exceptional ride quality. By studying the flex and breath of carbon fiber, we have been able to discover how forces flow through frames. With just a few pedal strokes, you will notice that this sublime ride sets a new standard.

• Every detail, from the derailleur hanger to the fork expander plug, has been designed with style, weight, and durability in mind. We have also equipped it with the new Roval Alpinist carbon seatpost, which saves even more weight and enhances ride characteristics. All in pursuit of the perfect ride.