2025 Specialized Aethos LTD 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
- +1.8°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Only the Specialized Aethos LTD 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 LTD 49 | Specialized Aethos 2 Pro 61 | Difference |
|---|---|---|---|
| Reach | 375mm | not listed | |
| Stack | 514mm | not listed | |
| Head tube angle | 71.75° | 73.5 | +1.8° |
| Seat tube angle | 75.5° | not listed | |
| Effective top tube | 508mm | not listed | |
| Chainstay length | 410mm | 410 | ±0 mm |
| Wheelbase | 973mm | not listed | |
| BB drop | 74mm | not listed | |
| BB height | 266mm | not listed | |
| Standover | 705mm | not listed | |
| Seat tube length | 431mm | not listed | |
| Fork length | 369mm | not listed | |
| Head tube length | 109mm | not listed |
Differences are the Specialized Aethos 2 Pro minus the Specialized Aethos LTD. Full charts: 2025 Specialized Aethos LTD, 2024 Specialized Aethos 2 Pro.
Where each sits in its class
Specialized Aethos LTDSpecialized 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 LTDS-Works LTD | Specialized Aethos 2 ProPro |
|---|---|---|
| Frame | Specialized S-Works Aethos FACT | Specialized Aethos 2 FACT 10r Carbon |
| Shifter | SRAM RED AXS | Shimano Ultegra R8100 Di2 |
| Derailleur | SRAM Red AXS | Shimano Ultegra R8100 Di2 |
| Cassette | SRAM RED XG-1290 | SRAM Force |
| Chain | SRAM RED | SRAM Force |
| Crankset | SRAM RED AXS Power Meter | SRAM Force E1 |
| Bottom bracket | SRAM DUB | SRAM DUB BSA 68 |
| Wheelset | Roval Alpinist CLX | Roval Alpinist CL II |
| Tire | Specialized S-Works Turbo 2BR | S Works Turbo TLR Race |
| Brake | SRAM Red AXS | Shimano Ultegra |
| Stem | Roval Alpinist | not listed |
| Seatpost | Roval Alpinist | Roval Alpinist Carbon S-Works |
| Saddle | Specialized S-Works Power | Specialized Power Pro Mirror |
| Chainring | 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 |
Know what is on every bike.
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