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.
A lightweight road bike without the Tarmac's aero brief. It climbs and floats; it does not try to be a Tarmac SL8 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.
A lightweight road bike without the Tarmac's aero brief. It climbs and floats; it does not try to be a Tarmac SL8 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.
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.
| Measurement |  SpecializedS-Works Aethos 2026 |  SpecializedS-Works Aethos 2025 |  SpecializedAethos 2022 |
|---|---|---|---|
| Stackmm | 565 | 565 | 565 |
| Reachmm | 387 | 387 | 387 |
| Head tube angle° | 73.5 | 73.5 | 73.5 |
| Seat tube angle° | 73.5 | 73.5 | 73.5 |
| Chainstaymm | 410 | 410 | 410 |
| Wheelbasemm | 991 | 991 | 991 |
| BB dropmm | 72 | 72 | 72 |
| BB heightmm | — | — | — |
| Standovermm | — | — | — |
| Part | S-Works Aethos 56 | S-Works Aethos 56 | Aethos 56 |
|---|---|---|---|
| Stem | 100 mm | 100 mm | 100 mm |
| Bar | 420 mm | 420 mm | 420 mm |
| Crank | 172.5 mm | 172.5 mm | 172.5 mm |
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