2024 Specialized Aethos 2 Pro vs 2025 Specialized Allez Sprint Comp
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 Allez Sprint Comp
- 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
- −1.0°
- Slacker: calmer steering
- 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 Allez Sprint Comp 52 | Difference |
|---|---|---|---|
| Head tube angle | 73.5 | 72.5° | −1.0° |
| Chainstay length | 410 | 410mm | ±0 mm |
| Reach | not listed | 383mm | |
| Stack | not listed | 520mm | |
| Seat tube angle | not listed | 74° | |
| Effective top tube | not listed | 532mm | |
| Wheelbase | not listed | 976mm | |
| BB drop | not listed | 74mm | |
| BB height | not listed | 266mm | |
| Standover | not listed | 755mm | |
| Seat tube length | not listed | 495mm | |
| Fork length | not listed | 366mm | |
| Head tube length | not listed | 115mm |
Differences are the Specialized Allez Sprint Comp minus the Specialized Aethos 2 Pro. Full charts: 2024 Specialized Aethos 2 Pro, 2025 Specialized Allez Sprint Comp.
Where each sits in its class
Specialized Aethos 2 ProSpecialized Allez Sprint Comp
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 Allez Sprint CompComp |
|---|---|---|
| Frame | Specialized Aethos 2 FACT 10r Carbon | not listed |
| Shifter | Shimano Ultegra R8100 Di2 | Shimano 105 |
| Derailleur | Shimano Ultegra R8100 Di2 | Shimano 105 |
| Cassette | SRAM Force | Shimano 105 |
| Chain | SRAM Force | Shimano 105 |
| Crankset | SRAM Force E1 | Shimano 105 R7100 |
| Chainring | Shimano Ultegra | not listed |
| Bottom bracket | SRAM DUB BSA 68 | not listed |
| Wheelset | Roval Alpinist CL II | DT Swiss R470 |
| Tire | S Works Turbo TLR Race | Specialized Turbo Pro |
| Brake | Shimano Ultegra | Shimano 105 |
| 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 | Specialized S-Works Tarmac |
| Saddle | Specialized Power Pro Mirror | Specialized Power Sport |
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