Specialized Aethos 2 Expert Bicycle - Gray

Specialized Aethos 2 Expert – The Road Bike that Breaks the Rules

The Specialized Aethos 2 Expert represents the pure essence of road cycling.
With a FACT 10r carbon frame weighing only 705 grams, this bike is the lightest in its category, but weight is not its only strength. The Aethos 2 was designed to break the rules of competition and offer the pure joy of riding, with a riding feel so natural and smooth it almost makes the bike "disappear" beneath you.

Thanks to the improved tire clearance, the optimized geometry, and top-level components like the Shimano Ultegra Di2 drivetrain and the Roval C38 carbon wheels, the Aethos 2 Expert is perfect for those seeking responsiveness, efficiency, and race comfort all in one bike.

Every detail has been designed to ensure exceptional performance on every climb, descent, or straightaway: from the FACT 10r fork to the aerodynamic carbon wheels, to the Body Geometry Power Expert saddle for an optimal position even on long distances.

In the Spotlight

• Use: Competitive road cycling

• Frame: 705 g FACT 10r Carbon / FACT 10r Fork

• Fit: High-performance endurance geometry

• Cockpit and wheels: Roval Alpinist handlebar, Specialized Pro SL stem, Roval C38 wheels

• Drivetrain: Shimano Ultegra Di2

• Weight: 7.12 kg (size 56 cm)

Complete Technical Specifications

Frame

• Frame: Aethos 2 FACT 10r Carbon, Rider First Engineered™, threaded bottom bracket (Threaded BB), internal cable routing, 12x142 mm thru-axle, flat-mount disc brakes

Suspensions

• Fork: Aethos 2 FACT 10r Carbon, 12x100 mm thru-axle, flat-mount disc brakes

Brakes

• Front: Shimano Ultegra BR-R8170 Hydraulic Disc Brake

• Rear: Shimano Ultegra BR-R8170 Hydraulic Disc Brake

Drivetrain

• Shifters: Shimano Ultegra Di2 R8170, hydraulic disc brakes

• Front derailleur: Shimano Ultegra Di2 R8150, braze-on

• Rear derailleur: Shimano Ultegra Di2 R8150, 12 speed

• Cassette: Shimano Ultegra, 12-speed, 11-30T

• Chain: Shimano XT M8100, 12-speed with quick link

• Crankset: Shimano Ultegra R8100, 52/36T

• Bottom bracket: Shimano Threaded BSA BB

Wheels & Tires

• Wheels: Roval C38, 21 mm internal width carbon rims

• Tires: S-Works Turbo 700x28 (front and rear)

• Inner tubes: 700x20-28, Presta valve 48 mm

Cockpit

• Stem: Specialized Pro SL, alloy, 4-bolt

• Handlebar: Roval Alpinist Carbon Handlebar, 125 mm drop, 75 mm reach

• Seatpost: Roval Alpinist Carbon Seatpost

• Seatpost collar: Specialized Alloy, 30 mm

• Saddle: Body Geometry Power Expert

• Handlebar tape: Supacaz Super Sticky Kush

Product Details

• Identifier: 221565

• Weight: 7.12 kg (15 lb, 11.2 oz) – tubeless setup

• Weighed measurement: 56

Note Well

Technical specifications may change without notice depending on component availability.
Product images are purely indicative and may not exactly reflect the described features.

The Aethos 2 Expert is not just an ultralight racing bike: it is a love letter to cycling.
Every line and component have been designed to offer maximum performance, perfect balance, and unique riding sensations.

Thanks to Rider First Engineered™ technology, every frame size maintains the same stiffness and comfort characteristics, making the Aethos 2 smooth on climbs, stable on descents, and lightning-fast on pace changes.
The electronic drivetrain Shimano Ultegra Di2 ensures precise and reliable shifting, while the wheels Roval C38 carbon complete a no-compromise road bike.

With the Specialized Aethos 2 Expert, you don't follow the rules: you rewrite them.