2019 Specialized Roubaix Expert vs 2018 Trek Domane
The 56 is the Trek Domane size closest to your 54 Specialized Roubaix Expert. 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 Expert 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 Expert, 54Trek Domane, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix Expert 54 | Trek Domane 56 | Difference |
|---|---|---|---|
| Reach | 375mm | 377 | +2 mm |
| Stack | 585mm | 591 | +6 mm |
| Head tube angle | 72.75° | 71.9 | −0.8° |
| Seat tube angle | 74° | 73.3 | −0.7° |
| Effective top tube | 545mm | 554 | +9 mm |
| Chainstay length | 415mm | 420 | +5 mm |
| Wheelbase | 987mm | 1008 | +21 mm |
| BB drop | 76mm | 78 | +2 mm |
| Standover | 762mm | 776 | +14 mm |
| Seat tube length | 481mm | 525 | +44 mm |
| Head tube length | 125mm | 175 | +50 mm |
Differences are the Trek Domane minus the Specialized Roubaix Expert. Full charts: 2019 Specialized Roubaix Expert, 2018 Trek Domane.
Where each sits in its class
Specialized Roubaix ExpertTrek 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 ExpertExpert | Trek Domane |
|---|---|---|
| Shifter | Shimano Ultegra Di2 | not listed |
| Derailleur | Shimano Ultegra R8050 Di2 | not listed |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | not listed |
| Crankset | Shimano Ultegra R8000 | not listed |
| Bottom bracket | Shimano Ultegra | not listed |
| Wheelset | Roval C38 | not listed |
| Tire | Specialized Turbo Pro | not listed |
| Brake | Shimano Ultegra | not listed |
| Handlebar | Specialized Expert Hover | not listed |
| Seatpost | Specialized S-Works CG-R | not listed |
| Saddle | Specialized Phenom Expert | not listed |
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