Specialized Aethos Pro Di2

The Aethos is designed specifically for ride quality rather than UCI racing compliance. While most race bikes prioritize aerodynamic stiffness at the expense of comfort, the Aethos focuses on a lightweight, supple frame geometry that feels more natural and responsive on long, varied road rides.

The Aethos Pro provides clearance for tires up to 32mm wide. This allows you to run slightly wider rubber for better traction and comfort on rougher pavement without sacrificing the bike's nimble handling.

The Roval Alpinist Cockpit is an integrated one-piece bar and stem system, which means you cannot adjust the stem length or bar width independently. You will need to select the specific size that matches your fit requirements at the time of purchase.

No, the Aethos uses a standard threaded BSA bottom bracket. This is a significant benefit for long-term maintenance, as it is easier to service and less prone to the creaking issues sometimes associated with press-fit systems.

While it is incredibly light and fast, the Aethos is optimized for performance endurance rather than pure aerodynamics. If your primary goal is criterium racing or flat-out sprinting, you might prefer a dedicated aero bike, but for climbing-heavy road races or long-distance events, the Aethos is exceptionally capable.

The complete bike in a size 56cm weighs approximately 6.73kg. This exceptionally low weight is achieved through the use of the FACT 10r carbon frame and lightweight Roval components.