2021 Trek Domane SL Gen 3 vs 2023 Specialized Roubaix SL8 Comp
The 44 is the Specialized Roubaix SL8 Comp size closest to your 47 Trek Domane SL Gen 3. 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 Gen 3 in 47, the Specialized Roubaix SL8 Comp in 44 places the top of the head tube 13 mm higher and 11 mm further back, relative to the bottom bracket. Its wheelbase is 8 mm longer, which can contribute to stability at speed.
- Frame stack
- +13 mm
- Higher front end
- Frame reach
- −11 mm
- Shorter frame reach
- Wheelbase
- +8 mm
- Longer: steadier at speed
- Head angle
- −1.7°
- Slacker: calmer steering
- Chainstays
- −2 mm
- About the same
The two frames
We can't draw these frames yet. The Trek Domane SL Gen 3 numbers we have for size 47 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane SL Gen 3 47 | Specialized Roubaix SL8 Comp 44 | Difference |
|---|---|---|---|
| Reach | 364 | 353 | −11 mm |
| Stack | 527 | 540 | +13 mm |
| Head tube angle | 71.0° | 69.3 | −1.7° |
| Effective top tube | 509 | 503 | −6 mm |
| Chainstay length | 420 | 418 | −2 mm |
| Wheelbase | 986 | 994 | +8 mm |
| BB drop | 80 | not listed | |
| Standover | 686 | 686 | ±0 mm |
| Seat tube length | 420 | 365 | −55 mm |
| Head tube length | 110 | 90 | −20 mm |
| Seat tube angle | not listed | 75 | |
| BB height | not listed | 269 |
Differences are the Specialized Roubaix SL8 Comp minus the Trek Domane SL Gen 3. Full charts: 2021 Trek Domane SL Gen 3, 2023 Specialized Roubaix SL8 Comp.
Where each sits in its class
Trek Domane SL Gen 3Specialized 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 SL Gen 3SL 7 AXS Gen 3 | Specialized Roubaix SL8 CompSL8 Comp |
|---|---|---|
| Frame | Trek OCLV | Specialized FACT 10R |
| Fork | Trek Domane SLR | Specialized Future Shock 3.2 |
| Shifter | SRAM Force eTap AXS | Shimano 105 |
| Derailleur | SRAM Force eTAP AXS | Shimano 105 |
| Cassette | SRAM Force XG-1270 | Shimano 105 |
| Chain | SRAM Force | Shimano 105 |
| Crankset | SRAM Force AXS Power Meter | Shimano 105 |
| Bottom bracket | SRAM DUB | Shimano 105 |
| Wheelset | Bontrager Aeolus Pro 3V | DT Swiss G540 |
| Tire | Bontrager R2 Hard-Case Lite | S Works Mondo, S Works Mondo 2BR |
| Brake | SRAM Force | Shimano 105 |
| Handlebar | Bontrager Elite IsoZone VR-SF | Specialized Hover |
| Seatpost | Bontrager Seatmast Cap | Specialized S-Works Pavé |
| Saddle | Bontrager P3 Verse | Specialized Body Geometry Power Sport |
| Chainring | not listed | Shimano 105 |
| Rotor | not listed | Shimano 105 |
| Stem | not listed | Specialized Future Stem |
| Bar tape | not listed | Supacaz Super Sticky Kush |
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