2017 Specialized Roubaix Comp vs 2018 Trek Domane
The 56 is the Trek Domane size closest to your 54 Specialized Roubaix Comp. 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 Trek Domane
Compared with the Specialized Roubaix Comp in 54, the Trek Domane in 56 places the top of the head tube 6 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 21 mm longer, which can contribute to stability at speed.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +21 mm
- Longer: steadier at speed
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Roubaix Comp, 54Trek Domane, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix Comp 54 | Trek Domane 56 | Difference |
|---|---|---|---|
| Reach | 375 | 377 | +2 mm |
| Stack | 585 | 591 | +6 mm |
| Head tube angle | 72.75 | 71.9 | −0.8° |
| Seat tube angle | 74 | 73.3 | −0.7° |
| Chainstay length | 415 | 420 | +5 mm |
| Wheelbase | 987 | 1008 | +21 mm |
| Standover | 762 | 776 | +14 mm |
| Seat tube length | 481 | 525 | +44 mm |
| Head tube length | 125 | 175 | +50 mm |
| Effective top tube | not listed | 554 | |
| BB drop | not listed | 78 |
Differences are the Trek Domane minus the Specialized Roubaix Comp. Full charts: 2017 Specialized Roubaix Comp, 2018 Trek Domane.
Where each sits in its class
Specialized Roubaix CompTrek Domane
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 Roubaix CompComp | Trek Domane |
|---|---|---|
| Frame | Specialized FACT 10R | not listed |
| Fork | Specialized Roubaix | not listed |
| Shifter | Shimano RS505 | not listed |
| Derailleur | Shimano Ultegra | not listed |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X11 | not listed |
| Crankset | Praxis Zayante | not listed |
| Chainring | Praxis Zayante | not listed |
| Wheelset | DT Swiss R470 | not listed |
| Tire | Specialized Turbo Pro | not listed |
| Rim | DT Swiss R460 | not listed |
| Brake | Shimano 505 | not listed |
| Handlebar | Specialized Hover | not listed |
| Stem | Specialized 3D-forged | not listed |
| Grips | S-Wrap Roubaix | not listed |
| Bar tape | Specialized S-Wrap Roubaix | not listed |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Phenom Comp GT | not listed |
Know what is on every bike.
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