Includes PTFE backup rings (2018-20 version also includes main damper shaft seal)
Low profile center tread rolls fast and has small paddles for climbing and braking traction
Puncture protection GreenGuard protective layer
5/584 Tire Type Clincher TPI 2x67TPI Labeled Size 27
They use a narrow/wide design specifically tailored to road/cx/gravel applications
2026 Specialized Aethos Pro Axs Bike Gloss Shadow Silver / Emerald Metallic 49 Model=EKAR 13-Speed Ergopower Control Lever and Caliper Includes PTFE backup rings (2018-20With a 705g frame, the Aethos 2 is the lightest bike in its class . But weight was never the point. Built by breaking racing's rules to deliver pure road riding bliss, it's engineered to disappear beneath you: responsive, supple, and sublime. Now with increased tire clearance, refined components, and data based fit enhancing geometry, it brings that transcendent ride feel to more riders than ever. Aethos 2 breaks the rules, for the love of the ride.