Aethos Expert Di2 (2026)

Aethos 2

Break the Rules

With 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.

At a Glance

• Use: Performance Road Riding Frameset: 705g FACT 10r Frame / FACT 10r Fork
• Fit: Performance Endurance
• Cockpit & Wheels: Roval Alpinist bar, Pro SL stem, C38 wheels
• Drivetrain: Shimano Ultegra Di2
• Weight: 7.12kg (56cm)

Frame: Aethos 2 FACT 10r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount disc
Fork: Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc

Front Brake: Shimano Ultegra BR-R8170 Hydraulic Brake
Rear Brake: Shimano Ultegra BR-R8170 Hydraulic Brake

Bottom Bracket: Shimano Threaded BSA BB
Rear Derailleur: Shimano Ultegra Di2 R8150, 12-speed
Front Derailleur: Shimano Ultegra Di2 R8150, braze-on
Shift Levers: Shimano Ultegra Di2 R8170, hydraulic disc
Crankset: Shimano Ultegra R8100, 52/36t
Cassette: Shimano Ultegra, 12-speed, 11-30t
Chain: Shimano XT M8100, 12-speed w/ quick link

Inner Tubes: 700×20-28, 48mm Presta Valve
Front Wheel: Roval C38, 21mm internal width carbon rim
Rear Wheel: Roval C38, 21mm internal width carbon rim
Front Tire: S-Works Turbo, 700×28
Rear Tire: S-Works Turbo, 700×28

Saddle: Body Geometry Power Expert
Handlebars: Roval Alpinist Carbon Handlebar, 125mm drop, 75mm reach
Seatpost: Roval Alpinist Carbon Seatpost
Seat Binder: Specialized Alloy, 30mm
Stem: Specialized Pro SL, alloy, 4-bolt
Tape: Supacaz Super Sticky Kush

Product ID: 221565
Weight (Size 56): 7.12 kg (15 lb, 11.2 oz), tubeless