2024 Specialized Aethos 2 Pro vs 2025 Specialized Aethos 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 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
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Specialized Aethos 2 Pro numbers we have for size 61 are missing the reach, stack, seat angle and wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Aethos 2 Pro 61 | Specialized Aethos Pro 56 | Difference |
|---|---|---|---|
| Head tube angle | 73.5 | 73.5° | ±0.0° |
| Chainstay length | 410 | 410mm | ±0 mm |
| Reach | not listed | 395mm | |
| Stack | not listed | 565mm | |
| Seat tube angle | not listed | 73.5° | |
| Effective top tube | not listed | 562mm | |
| Wheelbase | not listed | 991mm | |
| BB drop | not listed | 72mm | |
| BB height | not listed | 268mm | |
| Standover | not listed | 769mm | |
| Seat tube length | not listed | 504mm | |
| Fork length | not listed | 369mm | |
| Head tube length | not listed | 157mm |
Differences are the Specialized Aethos Pro minus the Specialized Aethos 2 Pro. Full charts: 2024 Specialized Aethos 2 Pro, 2025 Specialized Aethos Pro.
Where each sits in its class
Specialized Aethos 2 ProSpecialized Aethos Pro
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 2 ProPro | Specialized Aethos Pro |
|---|---|---|
| Frame | Specialized Aethos 2 FACT 10r Carbon | not listed |
| Shifter | Shimano Ultegra R8100 Di2 | not listed |
| Derailleur | Shimano Ultegra R8100 Di2 | not listed |
| Cassette | SRAM Force | not listed |
| Chain | SRAM Force | not listed |
| Crankset | SRAM Force E1 | not listed |
| Chainring | Shimano Ultegra | not listed |
| Bottom bracket | SRAM DUB BSA 68 | not listed |
| Wheelset | Roval Alpinist CL II | not listed |
| Tire | S Works Turbo TLR Race | not listed |
| Brake | Shimano Ultegra | not listed |
| Rotor | SRAM Force E1 | not listed |
| Handlebar | Roval Alpinist Cockpit II | not listed |
| Grips | Supacaz Super Sticky Kush | not listed |
| Bar tape | Supacaz Super Sticky Kush | not listed |
| Seatpost | Roval Alpinist Carbon S-Works | not listed |
| Saddle | Specialized Power Pro Mirror | not listed |
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