2019 Trek Domane SL Disc vs 2021 Specialized Roubaix Pro
The 54 is the Specialized Roubaix Pro size closest to your 56 Trek Domane SL 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 Specialized Roubaix Pro
Compared with the Trek Domane SL Disc in 56, the Specialized Roubaix Pro in 54 places the top of the head tube 6 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 20 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- −20 mm
- Shorter: quicker to change direction
- Head angle
- +0.8°
- Steeper: sharper steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Domane SL Disc numbers we have for size 56 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane SL Disc 56 | Specialized Roubaix Pro 54 | Difference |
|---|---|---|---|
| Reach | 377 | 376mm | −1 mm |
| Stack | 591 | 585mm | −6 mm |
| Head tube angle | 71.9° | 72.75° | +0.8° |
| Effective top tube | 554 | not listed | |
| Chainstay length | 420 | 415mm | −5 mm |
| Wheelbase | 1008 | 988mm | −20 mm |
| BB drop | 78 | 76mm | −2 mm |
| Standover | 776 | 762mm | −14 mm |
| Seat tube length | 525 | 465mm | −60 mm |
| Head tube length | 175 | 125mm | −50 mm |
| Seat tube angle | not listed | 74° | |
| BB height | not listed | 266mm | |
| Fork length | not listed | 370mm |
Differences are the Specialized Roubaix Pro minus the Trek Domane SL Disc. Full charts: 2019 Trek Domane SL Disc, 2021 Specialized Roubaix Pro.
Where each sits in its class
Trek Domane SL DiscSpecialized Roubaix Pro
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 SL DiscSL 5 Disc | Specialized Roubaix ProPro |
|---|---|---|
| Frame | Trek OCLV | not listed |
| Fork | Trek Domane | Specialized Future Shock 2.0 |
| Shifter | Shimano 105 | SRAM Force eTap AXS |
| Derailleur | Shimano 105 | SRAM Force eTAP AXS |
| Cassette | Shimano 105 | SRAM Force |
| Chain | Shimano 105 | SRAM Force |
| Crankset | Shimano 105 | SRAM FC Force DUB |
| Bottom bracket | Trek BB90 | SRAM DUB |
| Tire | Bontrager R1 Hard-Case Lite | Specialized S-Works Turbo |
| Rim | Bontrager Affinity | not listed |
| Brake | Shimano 105 | SRAM Force eTAP |
| Handlebar | Bontrager Comp VR-C | not listed |
| Seatpost | Bontrager Tuned seatmast cap | Specialized S-Works Pave |
| Saddle | Bontrager Arvada | Specialized Power |
| Wheelset | not listed | Roval Alpinist CL |
| Stem | not listed | Specialized Future |
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