2015 Specialized Roubaix SL4 Expert vs 2015 Trek Domane
The 56 is the Trek Domane size closest to your 56 Specialized Roubaix SL4 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 SL4 Expert in 56, the Trek Domane in 56 places the top of the head tube at about the same height and 10 mm further back, relative to the bottom bracket.
- Frame stack
- +2 mm
- About the same height
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- −2 mm
- About the same
- Head angle
- −0.6°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Roubaix SL4 Expert, 56Trek Domane, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Expert 56 | Trek Domane 56 | Difference |
|---|---|---|---|
| Reach | 387mm | 377 | −10 mm |
| Stack | 589mm | 591 | +2 mm |
| Head tube angle | 72.5° | 71.9 | −0.6° |
| Seat tube angle | 73.25° | 73.3 | +0.0° |
| Effective top tube | 565mm | not listed | |
| Chainstay length | 415mm | 420 | +5 mm |
| Wheelbase | 1010mm | 1008 | −2 mm |
| BB drop | 71.5mm | 78 | +7 mm |
| Standover | 798mm | not listed | |
| Seat tube length | 515mm | 525 | +10 mm |
| Head tube length | 190mm | 175 | −15 mm |
Differences are the Trek Domane minus the Specialized Roubaix SL4 Expert. Full charts: 2015 Specialized Roubaix SL4 Expert, 2015 Trek Domane.
Where each sits in its class
Specialized Roubaix SL4 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 SL4 ExpertSL4 Expert | Trek Domane |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Shifter | Shimano Ultegra | not listed |
| Derailleur | Shimano Ultegra | not listed |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | not listed |
| Wheelset | Fulcrum S4 | not listed |
| Tire | Specialized Turbo Pro | not listed |
| Brake | Shimano Ultegra | not listed |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Toupe Expert | not listed |
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