S-Works Aethos 2 Size:54 compared to chainrings that have

compared to chainrings that have an integrated spider

Made from BlueSign-approved fabric

threaded Composite Matrix cover keeps the USB port clean and sealed

chain hook

Thanks to the Pro-Tech™ sealing system

S-Works Aethos 2 Size:54 compared to chainrings that haveAt just 595 grams, the S Works Aethos 2 is the lightest production road frame in the world. But that was never the point. Built by breaking the rules of racing to deliver pure road riding bliss, Aethos 2 is engineered to disappear beneath you. Impossibly responsive, supple, and sublime. Now with increased tire clearance, refined components, and data based fit enhancing geometry, it brings that transcendent ride feel to more riders than ever. Aethos 2