Specialized Aethos 2023 geometry
Specialized Aethos 2023 (carbon road) has 6 published frame sizes. Stack 514–612 mm; reach 375–408 mm. Sources, weights and tyre clearance where available.
Road · carbon · 2023
Check the source. The frame version or current availability is not fully confirmed. Check the source notes.
Measurements
Lengths in mm · Angles in degrees Select + beneath a size to compare
| Frame size | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Stack mm | 514 | 527 | 544 | 565 | 591 | 612 |
| Reach mm | 375 | 380 | 384 | 395 | 402 | 408 |
| Effective top tube mm | 508 | 531 | 540 | 562 | 577 | 595 |
| Seat tube length mm | 431 | 462 | 481 | 504 | 532 | 567 |
| Head tube length mm | 109 | 120 | 137 | 157 | 184 | 204 |
| 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 |
| Chainstay length mm | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase mm | 973 | 975 | 978 | 991 | 1005 | 1012 |
| Bottom bracket drop mm | 74 | 74 | 72 | 72 | 72 | 72 |
| Bottom bracket height mm | 266 | 266 | 268 | 268 | 268 | 268 |
| Fork length mm | 369 | 369 | 369 | 369 | 369 | 369 |
| Fork offset mm | 47 | 47 | 44 | 44 | 44 | 44 |
| Trail mm | 63 | 58 | 58 | 55 | 55 | 52 |
| Standover height mm | 705 | 728 | 748 | 769 | 796 | 824 |
| Front centre mm | 574 | 577 | 579 | 591 | 606 | 613 |
— Not published in the collected chart. Size labels follow the manufacturer.
Frame and fork weight
- Frame: 585 g · size 56
S-Works FACT 12r frame; manufacturer explicitly states size 56 cm. Finish and included hardware unspecified.
Tyre clearance
Not verified for this frame.
Sources
Reviewed 2026-10-01
Measurement and frame notes
- The collected Aethos Expert has a FACT 10r frame. The 2023 S-Works Aethos uses FACT 12r, advertised at 585 g for size 56; no matching frame-only weight for the FACT 10r version was verified.