2025
2025 Specialized Aethos LTD
The 2025 Specialized Aethos LTD sits more aggressive than most road bikes. Reach 375 to 408 mm, stack 514 to 612 mm. The Aethos S-Works LTD build comes with SRAM Red AXS shifting and Roval Alpinist CLX wheels.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Aethos
- Model year
- 2025
- Frame
- LTD
- Type
- Road
- Geometry labels
- 49, 52, 54, 56, 58, and 61
- Drivetrain
- SRAM Red AXS
- Wheels
- Roval Alpinist CLX
- Geometry
- Complete for every size
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Reach(mm) | 375 | 380 | 384 | 395 | 402 | 408 |
| Stack(mm) | 514 | 527 | 544 | 565 | 591 | 612 |
| Head tube angle(°) | 71.75 | 72.5 | 73 | 73.5 | 73.5 | 74 |
| Seat tube angle(°) | 75.5 | 74 | 74 | 73.5 | 73.5 | 73 |
| Effective top tube(mm) | 508 | 531 | 540 | 562 | 577 | 595 |
| Chainstay length(mm) | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase(mm) | 973 | 975 | 978 | 991 | 1005 | 1012 |
| BB drop(mm) | 74 | 74 | 72 | 72 | 72 | 72 |
| BB height(mm) | 266 | 266 | 268 | 268 | 268 | 268 |
| Standover(mm) | 705 | 728 | 748 | 769 | 796 | 824 |
| Seat tube length(mm) | 431 | 462 | 481 | 504 | 532 | 567 |
| Fork length(mm) | 369 | 369 | 369 | 369 | 369 | 369 |
| Head tube length(mm) | 109 | 120 | 137 | 157 | 184 | 204 |
Stock build
13 parts
Frame
Specialized S-Works Aethos FACT
Drivetrain
Wheels & Tires
Brakes
SRAM Red AXS
Cockpit
Seatpost & Saddle
Specialized S-Works Power
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Quick answers
- Which size or configuration labels have geometry for the 2025 Specialized Aethos LTD?
- Geometry is listed for 49, 52, 54, 56, 58, and 61.
- What are the reach and stack of the 2025 Specialized Aethos LTD in size 56?
- In size 56, reach is 395 mm and stack is 565 mm.
- What is the head tube angle of the 2025 Specialized Aethos LTD?
- The head tube angle is 73.5 degrees in size 56.
- What does the 2025 Specialized Aethos S-Works LTD ship with?
- The stock build includes Specialized S-Works Aethos FACT, SRAM RED AXS, Roval Alpinist CLX, and SRAM Red AXS.
- Which years of the Specialized Aethos are on Quiver?
- Quiver has the Specialized Aethos for 2025, 2024, 2023, 2022, and 2021.
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