2017 Trek Domane ALR Disc vs 2015 Specialized Roubaix SL4 Comp
The 54 is the Specialized Roubaix SL4 Comp size closest to your 52 Trek Domane ALR 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 SL4 Comp
Compared with the Trek Domane ALR Disc in 52, the Specialized Roubaix SL4 Comp in 54 places the top of the head tube at about the same height and 9 mm further forward, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +2 mm
- About the same height
- Frame reach
- +9 mm
- Longer frame reach
- Wheelbase
- −3 mm
- Shorter: quicker to change direction
- Head angle
- +0.7°
- Steeper: sharper steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Domane ALR Disc numbers we have for size 52 are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Domane ALR Disc 52 | Specialized Roubaix SL4 Comp 54 | Difference |
|---|---|---|---|
| Reach | 371 | 380mm | +9 mm |
| Stack | 561 | 563mm | +2 mm |
| Head tube angle | 71.3° | 72° | +0.7° |
| Effective top tube | 530 | not listed | |
| Chainstay length | 420 | 415mm | −5 mm |
| Wheelbase | 1003 | 1000mm | −3 mm |
| BB drop | 80 | not listed | |
| Standover | 735 | 776mm | +41 mm |
| Seat tube length | 475 | 495mm | +20 mm |
| Head tube length | 145 | 165mm | +20 mm |
| Seat tube angle | not listed | 73.5° |
Differences are the Specialized Roubaix SL4 Comp minus the Trek Domane ALR Disc. Full charts: 2017 Trek Domane ALR Disc, 2015 Specialized Roubaix SL4 Comp.
Where each sits in its class
Trek Domane ALR DiscSpecialized Roubaix SL4 Comp
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 ALR DiscALR 4 Disc | Specialized Roubaix SL4 CompSL4 Comp |
|---|---|---|
| Frame | Trek Alpha | Specialized SL4 FACT |
| Fork | Trek Domane | not listed |
| Shifter | Shimano RS405 | Shimano Ultegra |
| Derailleur | Shimano Tiagra | Shimano Ultegra Di2, Shimano Ultegra |
| Cassette | Shimano Tiagra | Shimano 105 |
| Chain | Shimano Tiagra | Shimano 105 |
| Crankset | Shimano Tiagra | Praxis TURN Zayante |
| Bottom bracket | Trek BB86.5 | not listed |
| Tire | Bontrager R1 | Specialized Turbo Pro |
| Hub | Bontrager centerlock | not listed |
| Brake | Shimano RS505 | Shimano 105 |
| Handlebar | Bontrager VR-C | not listed |
| Saddle | Bontrager Affinity | Specialized Toupe |
| Wheelset | not listed | Fulcrum S4 |
| Seatpost | not listed | Specialized CG-R |
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