Aethos 2 2026
Aethos 2 Expert
The 2026 Specialized Aethos 2 Expert is a road bike offered in 6 sizes, 49 to 61. Reach runs from 373 to 404 mm and stack from 522 to 627 mm. It ships with Shimano Ultegra R8150 Di2 and Roval C38.
Every number on this page was confirmed by at least two independent sources. Where the catalog cannot yet stand behind a figure, the cell says so instead of guessing. Verified against specialized.com and at least one independent source.
Key facts
- Brand
- Specialized
- Model
- Aethos 2
- Model year
- 2026
- Frame
- Expert
- Type
- Road
- Sizes
- 49, 52, 54, 56, 58, and 61
- Verified measurements
- 65 of 66
- Verified against
- specialized.com and at least one independent source
- Last checked
2026 Specialized Aethos 2 Expert drawn to scale
2026 Specialized Aethos 2 Expert geometry by size
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Reach(mm) | 373mm | 377mm | 384mm | 391mm | 398mm | 404mm |
| Stack(mm) | 522mm | 538mm | 559mm | 580mm | 606mm | 627mm |
| Head tube angle(°) | 71.4° | 72.1° | 72.5° | 73° | 73° | 73.5° |
| Seat tube angle(°) | 75.5° | 74.5° | 74° | 74° | 74° | 74° |
| Effective top tube(mm) | 508mm | 526mm | 544mm | 557mm | 572mm | 584mm |
| Chainstay length(mm) | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
| Wheelbase(mm) | 978mm | 981mm | 992mm | 998mm | 1013mm | 1020mm |
| BB drop(mm) | not yet verified | 76.5mm | 75mm | 75mm | 73.5mm | 73.5mm |
| Standover(mm) | 719mm | 737mm | 759mm | 779mm | 805mm | 834mm |
| Seat tube length(mm) | 450mm | 470mm | 490mm | 510mm | 535mm | 570mm |
| Head tube length(mm) | 114mm | 128mm | 150mm | 169mm | 198mm | 218mm |
Last checked .
2026 Specialized Aethos 2 stock build
21 parts. Specs shown only where two or more sources agree.
Frame
Suspension
Drivetrain
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
Quick answers
What sizes does the 2026 Specialized Aethos 2 Expert come in?
It comes in 6 sizes: 49, 52, 54, 56, 58, and 61.
What are the reach and stack of the 2026 Specialized Aethos 2 Expert in size 56?
In size 56, reach is 391 mm and stack is 580 mm.
What is the head tube angle of the 2026 Specialized Aethos 2 Expert?
The head tube angle is 73 degrees in size 56.
What does the 2026 Specialized Aethos 2 Expert ship with?
The stock build includes Specialized FACT Aethos 2 10r, Specialized FACT Aethos 2 10r Carbon, Shimano Ultegra R8170 Di2, and Roval C38.
Which years of the Specialized Aethos 2 are in the catalog?
The catalog has the Specialized Aethos 2 for 2026 and 2025.
Other frames of the 2026 Aethos 2
Other years of the Aethos 2
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