2021 Trek Domane SL vs 2023 Specialized Roubaix SL8 Comp
The 56 is the Specialized Roubaix SL8 Comp size closest to your 58 Trek Domane SL. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Roubaix SL8 Comp
Compared with the Trek Domane SL in 58, the Specialized Roubaix SL8 Comp in 56 places the top of the head tube 6 mm lower and 9 mm further forward, relative to the bottom bracket. Its wheelbase is 10 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- +9 mm
- Longer frame reach
- Wheelbase
- −10 mm
- Shorter: quicker to change direction
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Domane SL numbers we have for size 58 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane SL 58 | Specialized Roubaix SL8 Comp 56 | Difference |
|---|---|---|---|
| Reach | 380 | 389 | +9 mm |
| Stack | 611 | 605 | −6 mm |
| Head tube angle | 72.0° | 73 | +1.0° |
| Effective top tube | 567 | 569 | +2 mm |
| Chainstay length | 425 | 420 | −5 mm |
| Wheelbase | 1022 | 1012 | −10 mm |
| BB drop | 78 | not listed | |
| Standover | 796 | 787 | −9 mm |
| Seat tube length | 548 | 485 | −63 mm |
| Head tube length | 195 | 140 | −55 mm |
| Seat tube angle | not listed | 73.5 | |
| BB height | not listed | 270 |
Differences are the Specialized Roubaix SL8 Comp minus the Trek Domane SL. Full charts: 2021 Trek Domane SL, 2023 Specialized Roubaix SL8 Comp.
Where each sits in its class
Trek Domane SLSpecialized Roubaix SL8 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 | Trek Domane SLSL 4 | Specialized Roubaix SL8 CompSL8 Comp |
|---|---|---|
| Frame | Trek OCLV | Specialized FACT 10R |
| Fork | Trek Domane SL | Specialized Future Shock 3.2 |
| Shifter | Shimano Tiagra R4720 | Shimano 105 |
| Derailleur | Shimano 105 R7000, Shimano Tiagra 4700 | Shimano 105 |
| Cassette | Shimano Tiagra HG-500 | Shimano 105 |
| Chain | Shimano Tiagra HG54 | Shimano 105 |
| Crankset | Praxis Alba M30 | Shimano 105 |
| Tire | Bontrager R1 Hard-Case Lite | S Works Mondo, S Works Mondo 2BR |
| Rim | Bontrager Affinity | not listed |
| Brake | Shimano Tiagra R4770 | Shimano 105 |
| Handlebar | Bontrager Comp VR-C | Specialized Hover |
| Seatpost | Bontrager Seatmast Cap | Specialized S-Works Pavé |
| Saddle | Bontrager P3 Verse | Specialized Body Geometry Power Sport |
| Chainring | not listed | Shimano 105 |
| Bottom bracket | not listed | Shimano 105 |
| Wheelset | not listed | DT Swiss G540 |
| Rotor | not listed | Shimano 105 |
| Stem | not listed | Specialized Future Stem |
| Bar tape | not listed | Supacaz Super Sticky Kush |
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