Specialized Aethos Sport Shimano 105 Di2 2024

The Aethos was created to tread the perfect line between exceptional ride quality, extreme lightness and unparalleled style. The Aethos Sport has easy-to-maintain Shimano 105 mechanical shifters, hydraulic disc brakes and sturdy DT Swiss R470 wheels.

The Aethos's frame was designed to create the perfect combination of ride quality, light weight and style-so you can accelerate even on steep climbs, get off the most technical descents and be comfortable even on long Sunday rides. But you might ask, how is that possible? Specialized engineers have re-invented the traditional road bike shape of the past, changing it slightly to optimize stiffness and balance without compromising weight or strength. The Aethos is more than a new bike; it is the beginning of a new generation.

An ultra-light frame is useless if the riding characteristics do not inspire confidence. That is why the perfect mix of stiffness on the front and rear was sought for the Aethos in relation to ride quality. By studying the flexibility and every tiny detail of the carbon fibers, much was discovered about how forces flow through the frame. It only takes a few pedal strokes to realize that the Aethos represents a new standard of riding.

Every detail, from the gear mount to the expander on the stem, was designed with style, weight and strength in mind. We also included the new Alpinist carbon fiber seatpost to file down additional weight and optimize ride characteristics-all for perfect rideability.

Technical Specifications

Transmission

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

Cockpit

• Saddle: Body Geometry Power Sport, steel rails
• Handlebar Tape: Supacaz Super Sticky Kush
• Seatpost: Roval Alpinist Carbon Seatpost
• Seat Collar: Specialized Alloy, 30mm
• Handlebar Stem: Specialized Pro SL, alloy, 4-bolt
• Handlebar Curve: Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp

Wheels & Tires

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

Suspension

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

Frame

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

Brakes

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

Weight

• Producer weight (size 56): 7.80kg (17 lb, 3.1 oz)

Actual weights will vary based on color, frame size, and component variation. Specifications are subject to change without notice.