2023 Trek Domane AL Gen 3 vs 2025 Specialized Roubaix SL8 Pro
The Specialized Roubaix SL8 Pro size closest to your 54 is the 52. Compare the 52 instead
What changes on the Specialized Roubaix SL8 Pro
Compared with the Trek Domane AL Gen 3 in 54, the Specialized Roubaix SL8 Pro in 54 places the top of the head tube 10 mm higher and 7 mm further forward, relative to the bottom bracket. Its wheelbase is 5 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +10 mm
- Higher front end
- Frame reach
- +7 mm
- Longer frame reach
- Wheelbase
- −5 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Domane AL Gen 3 numbers we have for size 54 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane AL Gen 3 54 | Specialized Roubaix SL8 Pro 54 | Difference |
|---|---|---|---|
| Reach | 374 | 381mm | +7 mm |
| Stack | 575 | 585mm | +10 mm |
| Head tube angle | 71.3° | 72.3° | +1.0° |
| Effective top tube | 542 | not listed | |
| Chainstay length | 420 | 420mm | ±0 mm |
| Wheelbase | 1010 | 1005mm | −5 mm |
| BB drop | 80 | 78mm | −2 mm |
| Standover | 754 | 766mm | +12 mm |
| Seat tube length | 500 | 465mm | −35 mm |
| Head tube length | 160 | 122mm | −38 mm |
| Seat tube angle | not listed | 74° | |
| BB height | not listed | 270mm | |
| Fork length | not listed | 375mm |
Differences are the Specialized Roubaix SL8 Pro minus the Trek Domane AL Gen 3. Full charts: 2023 Trek Domane AL Gen 3, 2025 Specialized Roubaix SL8 Pro.
Where each sits in its class
Trek Domane AL Gen 3Specialized Roubaix SL8 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 | Trek Domane AL Gen 3AL 2 Gen 3 | Specialized Roubaix SL8 ProSL8 Pro |
|---|---|---|
| Frame | Trek Alpha | not listed |
| Fork | Trek Domane AL | Specialized Future Shock 3.3 |
| Shifter | Shimano Claris R2000 | Shimano Ultegra R8170 Di2 |
| Derailleur | Shimano Claris R2000 | Shimano Ultegra R8150 Di2 |
| Cassette | Shimano HG-31 | Shimano Ultegra |
| Chain | Shimano Sora HG71 | Shimano XT M8100 |
| Crankset | Shimano RS200 | Shimano Ultegra R8100 |
| Bottom bracket | Shimano UN26 | not listed |
| Tire | Bontrager R1 Hard-Case Lite | Specialized S-Works Mondo 2BR |
| Hub | Formula RX-512, Formula RX-142 | not listed |
| Rim | Bontrager Affinity | not listed |
| Brake | Tektro C550 | Shimano Ultegra |
| Handlebar | Bontrager Comp VR-C | not listed |
| Seatpost | Bontrager Approved | Specialized S-Works Pave Seat post |
| Saddle | Bontrager P3 Verse | Specialized Power Pro Mirror |
| Wheelset | not listed | Roval Terra CL II |
| Stem | not listed | Specialized Future |
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