Specialized Aethos Comp 2025 Road Bike

Drawing on 46 years of expertise in performance cycling, the Specialized Aethos has been engineered purely for the love of riding. Striking the perfect balance between exceptional ride quality, ultra-lightweight construction, and standout style, the Aethos sets a new benchmark for road bikes. The Aethos Comp model delivers all of this with no compromises—ideal for riders seeking premium performance and timeless design.

With low-maintenance, Shimano 105 Di2 electronic shifting and hydraulic disc brakes paired with bomb-proof DT Swiss R470 Disc wheels, you have the perfect steed to excite you out on the road.

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## Key Features

* Shimano 105 Di2 electronic shifting with hydraulic disc brakes for smooth, low-maintenance performance
* DT Swiss R470 Disc wheels for reliable durability and confident road handling
* Ultralight Aethos frame (as low as 585g) with innovative carbon layup for optimal stiffness and balance
* Engineered geometry and carbon design for exceptional comfort on climbs, descents, and long-distance rides
* Roval Alpinist carbon seatpost for added weight savings and improved ride quality

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## Specifications

### Frameset

* Frame: Aethos FACT 9R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc
* Fork: FACT Carbon, 12x100mm thru-axle, flat-mount disc

### Wheels

* Rims: DT R470 Disc
* Tyres: Turbo Pro, 700x28

### Drivetrain

* Crankset: FC-R7100, 105, 12-Speed, Holllowtech 2
* Shifters: Shimano 105 Di2 7170
* Rear Derailleur: Shimano 105 Di2 7150
* Front Derailleur: Shimano 105 Di2 7150, braze on
* Chain: Shimano SLX M7100, 12-speed w/ quick link
* Cassette: Shimano 105, 12-speed, 11-34t
* Bottom Bracket: Shimano Threaded BSA BB

### Components

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

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## Specialized Aethos Sizing

| | 49cm | 52cm | 54cm | 56cm | 58cm | 61cm |
| ----- | ----- | ----- | ----- | ----- | ----- |
| Rider Height (cm) | 155 - 163 | 163 - 170 | 170 - 175 | 175 - 180 | 180 - 188 | 188 - 196 |
| Rider Height (in) | 5'1'' - 5'4'' | 5'4'' - 5'7'' | 5'7'' - 5'9'' | 5'9'' - 5'11'' | 5'11'' - 6'2'' | 6'2'' - 6'5'' |