2014 Specialized Roubaix SL4 Expert Disc vs 2015 Trek Domane
The 50 is the Trek Domane size closest to your 490.0 Specialized Roubaix SL4 Expert Disc. 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 Disc in 490.0, the Trek Domane in 50 places the top of the head tube 18 mm higher and 10 mm further back, relative to the bottom bracket. Its wheelbase is 13 mm longer, which can contribute to stability at speed.
- Frame stack
- +18 mm
- Higher front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- +13 mm
- Longer: steadier at speed
- Head angle
- −0.9°
- Slacker: calmer steering
- Chainstays
- +8 mm
- Longer: more planted
The two frames
Specialized Roubaix SL4 Expert Disc, 490.0Trek Domane, 50Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Expert Disc 490.0 | Trek Domane 50 | Difference |
|---|---|---|---|
| Reach | 378mm | 368 | −10 mm |
| Stack | 528mm | 546 | +18 mm |
| Head tube angle | 72° | 71.1 | −0.9° |
| Seat tube angle | 75.5° | 74.6 | −0.9° |
| Chainstay length | 412mm | 420 | +8 mm |
| Wheelbase | 983mm | 996 | +13 mm |
| Standover | 730mm | 716 | −14 mm |
| Seat tube length | 455mm | 450 | −5 mm |
| Head tube length | 125mm | 130 | +5 mm |
| Effective top tube | not listed | 519 | |
| BB drop | not listed | 80 |
Differences are the Trek Domane minus the Specialized Roubaix SL4 Expert Disc. Full charts: 2014 Specialized Roubaix SL4 Expert Disc, 2015 Trek Domane.
Where each sits in its class
Specialized Roubaix SL4 Expert DiscTrek 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 Expert DiscSL4 Expert Ultegra Di2 Disc | Trek Domane |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Fork | Specialized Roubaix FACT | not listed |
| Shifter | Shimano Di2 | not listed |
| Derailleur | Shimano Ultegra Di2 | not listed |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | not listed |
| Crankset | FSA SL-K | not listed |
| Wheelset | Specialized AXIS 4.0 | not listed |
| Tire | Specialized Roubaix Pro | not listed |
| Stem | Specialized Expert Pro-Set | not listed |
| Seatpost | Specialized S-Works CG-R | not listed |
| Saddle | Specialized Romin Expert | not listed |
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