The Aethos line offers three things: exceptional light weight, perfectly-balanced ride characteristics, and undeniable style, and the Aethos pro maintains this promise. Aethos: Billions of calculations striving for one thing - the perfect ride. Equipped with SRAM’s intuitive Force eTAP AXS for precise shifts and Roval’s Alpinist wheels paired with DT Swiss 350 hubs, it is a straightforward build that delivers consistently, mile after mile.