The new Aethos represents three things: exceptionally low weight, perfectly balanced riding characteristics, and undeniable style. Billions of calculations with just one goal - the perfect ride. And the Aethos Pro is no exception. The straightforward setup with ULTEGRA Di2 drivetrain from Shimano, ensuring clean and crisp shifting, and the new Alpinist wheels from Roval with DT Swiss 350 hubs leaves absolutely nothing to be desired, kilometer after kilometer.