2026
2026 Specialized Aethos 2 Expert
The 2026 Specialized Aethos 2 Expert sits in the middle of the range for road bikes, with a shorter rear center. Reach 373 to 404 mm, stack 522 to 627 mm. The Aethos 2 Expert build comes with Shimano Ultegra R8150 Di2 front shifting and Roval C38 wheels.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Aethos 2
- Model year
- 2026
- Frame
- Expert
- Type
- Road
- Geometry labels
- 49, 52, 54, 56, 58, and 61
- Drivetrain
- Shimano Ultegra R8150 Di2 front
- Wheels
- Roval C38
- Geometry
- Complete for every size
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Reach(mm) | 373 | 377 | 384 | 391 | 398 | 404 |
| Stack(mm) | 522 | 538 | 559 | 580 | 606 | 627 |
| 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) | 508 | 526 | 544 | 557 | 572 | 584 |
| Chainstay length(mm) | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase(mm) | 978 | 981 | 992 | 998 | 1013 | 1020 |
| BB drop(mm) | 75.5 (from the manufacturer) | 76.5 | 75 | 75 | 73.5 | 73.5 |
| Standover(mm) | 719 | 737 | 759 | 779 | 805 | 834 |
| Seat tube length(mm) | 450 | 470 | 490 | 510 | 535 | 570 |
| Head tube length(mm) | 114 | 128 | 150 | 169 | 198 | 218 |
✓Sources agreeMManufacturer
Stock build
21 parts
Frame
Specialized FACT Aethos 2 10r
Suspension
Specialized FACT Aethos 2 10r Carbon
Drivetrain
Shimano Ultegra R8150 Di2 front
Shimano Ultegra R8150 Di2 front
Shimano Ultegra R8100
SRAM DUB GX
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
Specialized Body Geometry Power Expert
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✓Sources agreeMManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2026 Specialized Aethos 2 Expert?
- Geometry is listed for 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 on Quiver?
- Quiver has the Specialized Aethos 2 for 2026, 2027, 2025, and 2024.
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