Specialized Aethos Comp 2025

The Aethos is more than a new bike, it is the beginning of a new generation!

What if with Specialized's 46 years of experience, the team would set out to build a bike made for the sheer pleasure of pedalling? The Aethos was created to tread the perfect line between exceptional ride quality, extreme lightness and unparalleled style, and the Aethos Comp is no exception. The Shimano 105 Di2 electronic gearbox is easy to maintain, the hydraulic disc brakes are powerful and the DT R470 Disc wheels very durable - a tireless workhorse for your pedalling. The Aethos' frame is designed to create the perfect combination of ride quality, lightness and style - so you can accelerate up steep climbs, descend technical descents and be comfortable on long Sunday rides. But you might ask, how did Specialized do it? It re-invented the traditional road bike shape of the past, changing it slightly to optimise stiffness and balance, without compromising weight or strength. A lightweight frame is no use if the riding characteristics don't inspire confidence. That is why for the Aethos, Specialized sought the perfect mix of stiffness at the front and rear in relation to ride quality. By studying the flexibility and every detail of the carbon fibres, Specialized discovered a lot about how forces flow through the frame. It only takes a few pedal strokes to realise that the Aethos represents a new standard of riding. Every detail, from the gear support to the stem expander, has been designed with style, weight and strength in mind. In addition, Specialized included the new Alpinist carbon-fibre seatpost to shed further weight and optimise the ride characteristics - all for perfect rideability.

Technical Specifications

Frame

• Frame: Aethos FACT 9R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc

Cockpit

• Handlebar Tape: SUPACAZ Super Sticky Kush
• Handlebar stem: Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp
• Handlebar stem: Specialized Pro SL, alloy, 4-bolt
• Saddle: Body Geometry Power Sport, steel rails
• Seatpost: Roval Alpinist Carbon Seatpost
• Seat clamp: Shimano 105 R7170, hydraulic disc

Suspension

• Fork: FACT Carbon, 12x100mm thru-axle, flat-mount disc

Brakes

• Front brake: Shimano 105 R7170, hydraulic disc
• Rear brake: Shimano 105 R7170, hydraulic disc

Transmission

• Shifting mechanism: Shimano 105 Di2 7170
• Front derailleur: Shimano 105 Di2 7150, braze-on
• Rear derailleur: Shimano 105 Di2 7150
• Sprocket set: Shimano 105, 12-speed, 11-34t
• Chain: Shimano SLX M7100, 12-speed w/ quick link
• Crankset: FC-R7100, 105, 12-speed, Holllowtech 2
• Chainrings: 50/34T
• Bottom Bracket: Shimano Threaded BSA BB

Wheels & Tyres

• Front Wheel: DT R470 Disc
• Rear Wheel: DT R470 Disc
• Tyre front: Turbo Pro, 700x28
• Rear tyre: Turbo Pro, 700x28
• Inner tubes: Presta Valve Standard, 48mm valves

Weight

• Manufacturer's weight: 7.5 kg (16 lb, 8.6 oz)
• Weighed measurement: 56.

Note: Specifications may vary without notification.