The S-Works Aethos frameset is built for one thing: the pure love of road cycling. Designed without compromise, the S-Works Aethos delivers unmatched performance, timeless style, and the lightest road bike frame in the world, weighing just 585g (size 56cm). Whether you’re climbing steep mountain passes, flying down technical descents, or enjoying long endurance rides, the Aethos frameset redefines what a premium road bike should feel like.
Featherweight Performance
Through billions of calculations and decades of carbon expertise, Specialized has engineered a frameset that combines ultimate stiffness, perfect balance, and featherlight weight. The Aethos reinvents classic road bike design with subtle frame shape refinements that deliver huge gains in strength and efficiency, all while keeping weight to an absolute minimum.
The Perfect Ride
More than just light, the S-Works Aethos road frame offers sublime ride quality. Its balanced stiffness between the front and rear creates a road bike that feels responsive under power yet smooth over rough tarmac. By studying how carbon fibre flexes under real-world forces, Specialized crafted a frame that flows seamlessly with your pedal stroke, turning every ride into pure performance.
Attention to Detail
Every component of the 2021 S-Works Aethos frameset has been designed with precision, from the derailleur hangers to the fork expander plug. Nothing is overlooked, ensuring style, strength, and durability in pursuit of the ultimate ride experience.