S-Works Aethos 2 - Shimano Dura-Ace Di2 Size:49 Recommended sealant amount per tire:

Recommended sealant amount per tire: Road: 24-32mm - 30-40ml Open Road: 33-50mm - 50-70ml MTN: 2

Shimano 105 shifting and hydraulic disc brakes

and the link that unifies them—as a single unit to minimize lateral flex under pedaling to harness every bit of pedal force

The motor’s responsive torque curve delivers power perfectly in-tune with your normal riding cadence and leaves no resistance when riding unassisted

and rear of the bike lessons from Aethos were applied

S-Works Aethos 2 - Shimano Dura-Ace Di2 Size:49 Recommended sealant amount per tire:At 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