2015 Specialized Roubaix SL4 Disc vs 2015 Trek Domane
The 50 is the Trek Domane size closest to your 49 Specialized Roubaix SL4 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 Disc in 49, the Trek Domane in 50 places the top of the head tube 19 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
- +19 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 Disc, 49Trek Domane, 50Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Disc 49 | Trek Domane 50 | Difference |
|---|---|---|---|
| Reach | 378mm | 368 | −10 mm |
| Stack | 527mm | 546 | +19 mm |
| Head tube angle | 72° | 71.1 | −0.9° |
| Seat tube angle | 75.5° | 74.6 | −0.9° |
| Effective top tube | 518mm | 519 | +1 mm |
| Chainstay length | 412mm | 420 | +8 mm |
| Wheelbase | 983mm | 996 | +13 mm |
| BB drop | 73mm | 80 | +7 mm |
| Standover | 730mm | 716 | −14 mm |
| Seat tube length | 445mm | 450 | +5 mm |
| Head tube length | 125mm | 130 | +5 mm |
Differences are the Trek Domane minus the Specialized Roubaix SL4 Disc. Full charts: 2015 Specialized Roubaix SL4 Disc, 2015 Trek Domane.
Where each sits in its class
Specialized Roubaix SL4 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 DiscS-Works SL4 Disc | Trek Domane |
|---|---|---|
| Frame | Specialized S-Works SL4 FACT | not listed |
| Wheelset | Roval Rapide CLX 40 SCS | not listed |
| Seatpost | Specialized CG-R | not listed |
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