2024 Specialized Aethos Pro Ultegra Di2

Aethos road bike perfectly balanced ride features and undeniable style, exceptional light weight and equipped with Shimano's Ultegra Di2 that delivers clean, crisp shifts

The Aethos frame has been designed with the perfect combination of maximum riding feel, light weight and style. With a completely new layout and process that has been perfected over several decades, you will get the lightest frame ever (585 grams, S-Works, size 56 cm). Every detail, from the derailleur hangers to the fork expander cap, has been designed with style in mind, weight and durability. It has also been fitted with Roval's new Alpinist carbon seatpost and wheels, saving even more weight and improves ride characteristics.