The Specialized Aethos Expert Shimano Ultegra Di2 is a lightweight, elegantly engineered road bike built for riders who value pure performance and refined ride quality. Its FACT 10r carbon frame is designed for perfect balance, stiffness, and comfort—offering incredible climbing efficiency and a smooth, responsive feel on every road. Outfitted with Shimano’s Ultegra Di2 electronic drivetrain, it delivers flawless, precise shifting with minimal maintenance. The DT Swiss wheels keep the setup fast and nimble, while hydraulic disc brakes ensure confident control on descents. Stripped of race-focused stiffness yet tuned for speed and finesse, the Aethos Expert is all about the simple joy of riding—effortless, responsive, and beautifully understated.