Loading geometry
A lightweight road bike without the Tarmac's aero brief. It climbs and floats; it does not try to be a Tarmac SL7 in a crosswind. The position is still race-adjacent, not Roubaix-tall.
Climbers and riders who want a light Specialized that isn't a full aero race bike. Not an endurance bike. The S-Works kit is the halo build — same geometry as the non-S-Works page for this year, different parts.
| Size | Stack | Reach | Stack/reach | Stem | Bar | Crank | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop | Wheel size |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 49 | 514 mm | 369 mm | 1.39:1 | 80 mm | 380 mm | 165 mm | 71.8° | 75.5° | 410 mm | 973 mm | 74 mm | 700c |
| 52 | 527 mm | 374 mm | 1.41:1 | 90 mm | 400 mm | 170 mm | 72.5° | 74.0° | 410 mm | 976 mm | 74 mm | 700c |
| 54 | 544 mm | 379 mm | 1.44:1 | 100 mm | 420 mm | 172.5 mm | 73.0° | 74.0° | 410 mm | 980 mm | 72 mm | 700c |
| 56 | 565 mm | 387 mm | 1.46:1 | 100 mm | 420 mm | 172.5 mm | 73.5° | 73.5° | 410 mm | 991 mm | 72 mm | 700c |
| 58 | 591 mm |
Same OEM palette as 2022.
Same published geometry as 2022.
No verified spec sheet for 2023 or 2022.
No launch MSRP in the catalog yet.
Compare 2023 and 2022 Specialized S-Works Aethos side by side
| 396 mm |
| 1.49:1 |
| 110 mm |
| 440 mm |
| 175 mm |
| 73.5° |
| 73.5° |
| 410 mm |
| 1006 mm |
| 72 mm |
| 700c |
| 61 | 612 mm | 403 mm | 1.52:1 | 110 mm | 440 mm | 175 mm | 74.0° | 73.0° | 410 mm | 1014 mm | 72 mm | 700c |
