The Specialized S-Works Aethos 2 Frameset redefines what a pure road bike can be—by breaking every rule that once defined the category. Weighing in at an astounding 595 grams, it’s the lightest production road frame in the world, yet weight was never the goal. The Aethos 2 was born to deliver an otherworldly ride experience—one that blends instantaneous responsiveness with unrivaled comfort and balance. Its FACT 12r carbon layup, the most advanced ever developed by Specialized, achieves unprecedented stiffness-to-weight efficiency through a combination of computational modeling, finite element analysis, and rider feedback. The result? A frame so finely tuned, it virtually disappears beneath you—responding instantly to your every input and floating effortlessly over imperfect tarmac. The Aethos 2 isn’t about watts, podiums, or racing rules—it’s about the unfiltered joy of the ride.

Behind its elegance lies a revolution in design thinking. Specialized’s Flow State Design process—where human intuition meets machine intelligence—guided the creation of a frame that’s as visually simple as it is structurally complex. Every curve, junction, and fiber orientation was optimized through advanced simulation to deliver both beauty and function in perfect harmony. The result is a bike that feels alive beneath you: supple, reactive, and composed in equal measure. With a Rider-First Engineered™ construction and FACT 12r carbon fork, the Aethos 2 ensures identical ride quality across all frame sizes, from the smallest to the largest, so every rider experiences the same sublime balance of performance and compliance.

The Aethos 2’s geometry has been completely reimagined for more riders and more comfort, informed by data from over 100,000 Body Geometry fits. A 15mm increase in stack height relieves pressure on the hands, neck, and shoulders for improved endurance, while a 7mm longer wheelbase enhances high-speed stability and confidence on technical descents. A 0.5° slacker head tube angle sharpens cornering precision without compromising the frame’s intuitive, “read-your-mind” handling. Combined, these refinements create a platform that climbs effortlessly, descends fearlessly, and handles like an extension of your body—no matter the gradient or terrain.

Every component of the S-Works Aethos 2 frameset reflects its minimalist yet performance-driven ethos. The frameset includes the S-Works Aethos 2 FACT 12r Carbon frame and fork, Roval Alpinist carbon seatpost with lightweight clamp, and a Specialized alloy seat binder with titanium bolt. Cable routing is fully hidden, while the threaded bottom bracket ensures long-term serviceability and reliability. With a total system weight of just 1.24 kg (size 56), the S-Works Aethos 2 represents the pinnacle of road bike design—engineered not to dominate races, but to elevate the simple, enduring pleasure of the perfect ride.