Specialized Aethos Comp Custom Build Road Bike - SRAM AXS CarbonSpecialized Aethos Comp Custom Build The aim of the Aethos is to be light, to be that best bike you keep for the sunny days, the fast social rides with mates. The club run weapon. Its UCI accredited so you can race it to whatever level you wish but we think that slightly misses the point. Specialized have used all their experience to create a bike that breaks away from the modern trends of fully integrated cabling and aero features. This bike cuts a