2021 Specialized Aethos Expert Shimano Ultegra Di 2 Road Bike in Gloss Ice Blue Teal Tint Flake Silver delivers groundbreaking innovation & unmatched ride quality, which will continue to inspire road riding in its purest form—offering unprecedented weight savings, perfectly-balanced ride quality, & undeniable style. The Aethos 10r frameset features the same ride quality & handling as the S-Works model. The only adjustments are to layup for weight. The 10r frame is designed with the perfect combination of ultimate ride feel, lightweight, & style—from accelerating up steep pitches & descending technical descents, to all-day saddle comfort on even the longest coffee rides, the Aethos hits the mark. Specialized reinventing the traditional road shape found on bikes of the past, with subtly altered shapes to deliver massive gains in stiffness & balance, all without affecting weight or durability. Pair that with an entirely-new layup & process Specialized perfected over multiple decades & you have the lightest frame out there.A featherweight frame is useless without confidence-inspiring ride characteristics, which is why the Aethos has the perfect balance of front & rear stiffness combined with exceptional ride quality. By studying the flexing & breathing of carbon fibre, Specialized was able to discover groundbreaking findings of how forces flow through frames. Just a few pedal strokes & you’ll realize this sublime ride sets a new standard. Every detail, from the derailleur hangers to the fork expander plug has been designed with style, weight, & durability in mind. spec’d with FACT 10r frameset, Roval Alpinist seatpost, Expert alloy handlebar, Shimano Ultegra Di 2 drivetrain, DT-Swiss R470 wheelset, & the Power Expert saddle ensure a lightweight, high-performance ride bike. Features FACT 10r frameset Roval Alpinist seatpost Expert alloy handlebar Shimano Ultegra Di 2 drivetrain DT-Swiss R470 wheelset Power Expert saddle. Weight: 7.14kg