2018 Trek Domane AL vs 2020 Specialized Roubaix Sport
The 49 is the Specialized Roubaix Sport size closest to your 50 Trek Domane AL. 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 Specialized Roubaix Sport
Compared with the Trek Domane AL in 50, the Specialized Roubaix Sport in 49 places the top of the head tube 9 mm higher and 5 mm further back, relative to the bottom bracket. Its wheelbase is 14 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +9 mm
- Higher front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −14 mm
- Shorter: quicker to change direction
- Head angle
- +0.4°
- Steeper: sharper steering
- Chainstays
- −7 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Domane AL numbers we have for size 50 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane AL 50 | Specialized Roubaix Sport 49 | Difference |
|---|---|---|---|
| Reach | 368 | 363mm | −5 mm |
| Stack | 546 | 555mm | +9 mm |
| Head tube angle | 71.1° | 71.5° | +0.4° |
| Effective top tube | 519 | not listed | |
| Chainstay length | 420 | 413mm | −7 mm |
| Wheelbase | 996 | 982mm | −14 mm |
| BB drop | 80 | 77.5mm | −3 mm |
| Standover | 716 | 715mm | −1 mm |
| Seat tube length | 450 | 410mm | −40 mm |
| Head tube length | 130 | 100mm | −30 mm |
| Seat tube angle | not listed | 74° | |
| BB height | not listed | 265mm | |
| Fork length | not listed | 370mm |
Differences are the Specialized Roubaix Sport minus the Trek Domane AL. Full charts: 2018 Trek Domane AL, 2020 Specialized Roubaix Sport.
Where each sits in its class
Trek Domane ALSpecialized Roubaix Sport
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 | Trek Domane ALAL 2 | Specialized Roubaix SportSport |
|---|---|---|
| Frame | Trek Alpha | not listed |
| Fork | Trek Domane | Specialized Future Shock 1.5 |
| Shifter | Shimano Claris | Shimano 105 R7020 |
| Derailleur | Shimano Claris | Shimano 105, Shimano 105 R7000 GS |
| Chain | SunRace CNM84 | KMC X11 Extra |
| Crankset | Trek Vuelta Corsa | Praxis Alba |
| Tire | Bontrager T2 | Specialized Turbo Pro |
| Handlebar | Bontrager VR-C | Specialized Hover |
| Seatpost | Bontrager SSR | Specialized S-Works Pave |
| Saddle | Bontrager Montrose | Specialized Power Sport |
| Cassette | not listed | Shimano 105 |
| Wheelset | not listed | DT Swiss R470 |
| Brake | not listed | Shimano 105 |
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