The 2021 Specialized Aethos Pro Ultegra Di2 Road Bike is a masterful blend of simplicity, performance, and innovation, designed for cyclists who prioritize the pure joy of riding. Featuring an ultralight carbon frame optimized for stiffness and balance, the Aethos delivers exceptional handling and responsiveness. Outfitted with Shimano’s Ultegra Di2 electronic drivetrain, it ensures flawless shifting and consistent performance in all conditions. Paired with lightweight Roval carbon wheels and Specialized’s Body Geometry saddle, the bike offers an unparalleled ride experience. Built for climbing, descending, and everything in between, the Aethos Pro redefines what a road bike can be.