2026 Specialized Allez Comp 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
- n/a
- One of the bikes has no number for this
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Specialized Allez Comp numbers we have for size 52 are missing the reach, stack, head angle, seat angle, chainstay length and wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Allez Comp 52 | Specialized Aethos 2 Pro 61 | Difference |
|---|---|---|---|
| Reach | not listed | not listed | |
| Stack | not listed | not listed | |
| Head tube angle | not listed | 73.5 | |
| Seat tube angle | not listed | not listed | |
| Effective top tube | 532 | not listed | |
| Chainstay length | not listed | 410 | |
| Wheelbase | not listed | not listed | |
| BB drop | 74 | not listed | |
| Standover | not listed | not listed | |
| Seat tube length | not listed | not listed | |
| Head tube length | not listed | not listed |
Differences are the Specialized Aethos 2 Pro minus the Specialized Allez Comp. Full charts: 2026 Specialized Allez Comp, 2024 Specialized Aethos 2 Pro.
Where each sits in its class
Specialized Allez CompSpecialized Aethos 2 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 Allez CompComp | Specialized Aethos 2 ProPro |
|---|---|---|
| Frame | Specialized E5 Premium Aluminum | Specialized Aethos 2 FACT 10r Carbon |
| Fork | Specialized FACT | not listed |
| Shifter | Shimano 105 Di2 | Shimano Ultegra R8100 Di2 |
| Derailleur | Shimano 105 Di2 | Shimano Ultegra R8100 Di2 |
| Cassette | Shimano 105 | SRAM Force |
| Chain | Shimano SLX M7100 | SRAM Force |
| Crankset | Shimano 105 | SRAM Force E1 |
| Chainring | Shimano 105 | Shimano Ultegra |
| Bottom bracket | Shimano 105 | SRAM DUB BSA 68 |
| Wheelset | DT Swiss R470 | Roval Alpinist CL II |
| Tire | Specialized Turbo | S Works Turbo TLR Race |
| Brake | Shimano 105 Di2 | Shimano Ultegra |
| Rotor | Shimano 105 | SRAM Force E1 |
| Handlebar | Specialized Shallow Drop | Roval Alpinist Cockpit II |
| Stem | Specialized 3D-forged alloy | not listed |
| Grips | Supacaz Suave | Supacaz Super Sticky Kush |
| Headset | 1-1/8" to 1-1/2" Cr-Mo cartridge | not listed |
| Seatpost | Specialized Alloy | Roval Alpinist Carbon S-Works |
| Saddle | Specialized Body Geometry Bridge | Specialized Power Pro Mirror |
| Bar tape | not listed | Supacaz Super Sticky Kush |
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