The Specialized S-Works Aethos 2 Frameset represents the lightest production road frame in its class, engineered not merely for minimal weight but to deliver pure road riding bliss. With a 595-gram FACT 12r frame, this frameset is built to disappear beneath riders through responsive handling, supple compliance, and sublime ride quality. Enhanced with increased tire clearance and data-based fit geometry refined from over 100,000 Body Geometry fits, the S-Works Aethos 2 brings transcendent ride feel to discerning cyclists seeking the ultimate road experience. The revolutionary Flow State Design philosophy began with engineers observing how frames "breathe" under load, a subtle rhythmic pattern revealing force movement through the structure. This insight informed Specialized&';s supercomputer, which was informed by decades of mechanical testing data, and evolved traditional round tubes into precisely sculpted forms optimized for energy flow. By refining shape rather than adding material layers, the design eliminates traditional carbon stiffness layers while improving ride quality and structural integrity. The refined geometry increases the stack by 15mm to reduce pressure on hands, neck, and shoulders during extended rides, while a 7mm longer wheelbase enhances descending confidence. A 0.5Adeg slacker headtube angle creates nimble yet intuitive handling that responds precisely to rider input. Despite accommodating 35mm tires for improved comfort, grip, and versatility, the S-Works Aethos 2 maintains its class-leading weight through meticulous optimization of every component. Built for riders who value a pure road riding experience and demand the lightest available platform. This blank canvas includes the groundbreaking FACT 12r frame and matching fork, plus the lightweight Roval Alpinist carbon seatpost with integrated clamp. Key Features Frame: FACT 12r Carbon with Flow State Design (595g) Components: Roval Alpinist Carbon Seatpost with Lightweight Clamp Weight: 1.24kg Complete Frameset (Size 56)