Aethos 2 2025
Aethos 2 Expert
The 2025 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 SRAM Force AXS 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.
Key facts
- Brand
- Specialized
- Model
- Aethos 2
- Model year
- 2025
- Frame
- Expert
- Type
- Road
- Sizes
- 49, 52, 54, 56, 58, and 61
- Verified measurements
- 72 of 72
- Last checked
2025 Specialized Aethos 2 Expert drawn to scale
2025 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(°) | 74° | 74° | 74° | 74° | 75.5° | 74.5° |
| 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) | 76.5mm | 76.5mm | 75mm | 75mm | 73.5mm | 73.5mm |
| BB height(mm) | 265.5mm | 265.5mm | 267mm | 267mm | 268.5mm | 268.5mm |
| 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 .
2025 Specialized Aethos 2 stock build
17 parts. Specs shown only where two or more sources agree.
Frame
Drivetrain
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
Quick answers
What sizes does the 2025 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 2025 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 2025 Specialized Aethos 2 Expert?
The head tube angle is 73 degrees in size 56.
What does the 2025 Specialized Aethos 2 Expert ship with?
The stock build includes Specialized Aethos 2, SRAM Force AXS, Roval C38, and SRAM Force.
Which years of the Specialized Aethos 2 are in the catalog?
The catalog has the Specialized Aethos 2 for 2025 and 2026.
Other frames of the 2025 Aethos 2
Other years of the Aethos 2
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