The all-new Specialized Aethos 2 takes everything riders loved about the original Aethos—the lightest production road bike ever—and makes it even better. Born from breaking the rules of modern bike design, Aethos redefined what a road bike could be. Now, Specialized has refined the formula to deliver a ride that’s lighter, smoother, and more accessible for more riders than ever.
Engineered with insights from over 100,000 Body Geometry fits, the Aethos 2 brings a 15 mm taller stack for comfort on long rides, a 7 mm longer wheelbase for confidence at speed, and a 0.5° slacker headtube for stability when cornering. Add in tyre clearance up to 35 mm and you’ve got a road bike that thrives on mountain climbs, alpine descents, and endurance rides alike—without compromise to weight or performance.
Every detail has been reworked to keep Aethos 2 the world’s lightest disc road frame, from the refined carbon layup to redesigned seatpost clamps, brake mounts, and derailleur hangers. Flow State Design technology eliminates unnecessary stiffness layers, giving you a frame that feels alive under load—responsive, durable, and effortless to ride.
With Rider-First Engineering ensuring flawless handling across every frame size, the Aethos 2 delivers precision control and a ride quality that disappears beneath you—so it’s just you, the road, and the ride of your life.
Whether you’re chasing KOMs, descending alpine passes, or clocking long days in the saddle, the Specialized Aethos 2 offers the perfect balance of lightness, comfort, and performance. This isn’t just evolution—it’s road cycling perfection, reimagined.