2025 Specialized Aethos Pro vs 2024 Specialized Aethos 2 Pro
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Aethos 2 Pro
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Specialized Aethos Pro is drawn. The Specialized Aethos 2 Pro numbers we have for size 61 are missing the reach, stack, seat angle and wheelbase.
Geometry side by side
| Measurement | Specialized Aethos Pro 54 | Specialized Aethos 2 Pro 61 | Difference |
|---|---|---|---|
| Reach | 384mm | not listed | |
| Stack | 544mm | not listed | |
| Head tube angle | 73° | 73.5 | +0.5° |
| Seat tube angle | 74° | not listed | |
| Effective top tube | 540mm | not listed | |
| Chainstay length | 410mm | 410 | ±0 mm |
| Wheelbase | 978mm | not listed | |
| BB drop | 72mm | not listed | |
| BB height | 268mm | not listed | |
| Standover | 748mm | not listed | |
| Seat tube length | 481mm | not listed | |
| Fork length | 369mm | not listed | |
| Head tube length | 137mm | not listed |
Differences are the Specialized Aethos 2 Pro minus the Specialized Aethos Pro. Full charts: 2025 Specialized Aethos Pro, 2024 Specialized Aethos 2 Pro.
Where each sits in its class
Specialized Aethos ProSpecialized Aethos 2 Pro
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Aethos Pro | Specialized Aethos 2 ProPro |
|---|---|---|
| Frame | not listed | Specialized Aethos 2 FACT 10r Carbon |
| Shifter | not listed | Shimano Ultegra R8100 Di2 |
| Derailleur | not listed | Shimano Ultegra R8100 Di2 |
| Cassette | not listed | SRAM Force |
| Chain | not listed | SRAM Force |
| Crankset | not listed | SRAM Force E1 |
| Chainring | not listed | Shimano Ultegra |
| Bottom bracket | not listed | SRAM DUB BSA 68 |
| Wheelset | not listed | Roval Alpinist CL II |
| Tire | not listed | S Works Turbo TLR Race |
| Brake | not listed | Shimano Ultegra |
| Rotor | not listed | SRAM Force E1 |
| Handlebar | not listed | Roval Alpinist Cockpit II |
| Grips | not listed | Supacaz Super Sticky Kush |
| Bar tape | not listed | Supacaz Super Sticky Kush |
| Seatpost | not listed | Roval Alpinist Carbon S-Works |
| Saddle | not listed | Specialized Power Pro Mirror |
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