Specialized Aethos 2 S-Works Di2

The Aethos 2 is a bike born from a single moment of human insight and machine intelligence: frames "breathe" under load. This philosophy, known as Flow State Design, utilizes supercomputer analysis to evolve tubes into sculpted forms, resulting in the lightest production road frame in the world, weighing just 595 grams. This wasn't about simply saving weight; it was about creating a new way of making bikes, achieving stiffness and responsiveness that makes this chassis capable of UCI-illegal 5.9kg builds.

This latest iteration offers greater versatility and increased confidence. No gram was safe from the Specialized Science Club's obsession, and the bike now clears 35mm tires with ease, providing smoother, faster rides and more grip for expanded road options. The geometry has been refined for a broader range of riders, featuring a 7mm longer wheelbase for added confidence on descents and a 0.5° slacker headtube for nimble, intuitive handling. Finished with a top-tier Shimano Dura-Ace Di2 drivetrain and Roval Alpinist cockpit, the complete bike weighs just 6.05kg, ensuring every ride is an impossibly responsive, performance endurance experience.