2015 Specialized Roubaix SL4 Pro Race vs 2015 Trek Domane
The 50 is the Trek Domane size closest to your 49 Specialized Roubaix SL4 Pro Race. 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 Pro Race 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 Pro Race, 49Trek Domane, 50Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Pro Race 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 Pro Race. Full charts: 2015 Specialized Roubaix SL4 Pro Race, 2015 Trek Domane.
Where each sits in its class
Specialized Roubaix SL4 Pro RaceTrek 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 Pro RaceSL4 Pro Race | Trek Domane |
|---|---|---|
| Frame | Specialized SL4 FACT | not listed |
| Shifter | SRAM Force 22 | not listed |
| Derailleur | SRAM Force 22 | not listed |
| Cassette | SRAM PG-1170 | not listed |
| Chain | SRAM 1170 | not listed |
| Wheelset | Roval Rapide CL 40 | not listed |
| Tire | Specialized Turbo Pro | not listed |
| Brake | SRAM Force | not listed |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Toupe Expert | not listed |
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