2015 Specialized Roubaix SL4 Comp Disc vs 2017 Trek Émonda SL
The 58 is the Trek Émonda SL size closest to your 56 Specialized Roubaix SL4 Comp 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 Émonda SL
Compared with the Specialized Roubaix SL4 Comp Disc in 56, the Trek Émonda SL in 58 places the top of the head tube 7 mm higher and 4 mm further forward, relative to the bottom bracket. Its wheelbase is 18 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- −18 mm
- Shorter: quicker to change direction
- Head angle
- +1.3°
- Steeper: sharper steering
- Chainstays
- −4 mm
- Shorter: livelier
The two frames
Only the Specialized Roubaix SL4 Comp Disc is drawn. The Trek Émonda SL numbers we have for size 58 are missing the seat angle.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Comp Disc 56 | Trek Émonda SL 58 | Difference |
|---|---|---|---|
| Reach | 387mm | 391 | +4 mm |
| Stack | 589mm | 596 | +7 mm |
| Head tube angle | 72.5° | 73.8° | +1.3° |
| Seat tube angle | 73.25° | not listed | |
| Effective top tube | 565mm | 573 | +8 mm |
| Chainstay length | 415mm | 411 | −4 mm |
| Wheelbase | 1010mm | 992 | −18 mm |
| BB drop | 71.5mm | 68 | −4 mm |
| Standover | 798mm | 786 | −12 mm |
| Seat tube length | 515mm | 553 | +38 mm |
| Head tube length | 190mm | 190 | ±0 mm |
Differences are the Trek Émonda SL minus the Specialized Roubaix SL4 Comp Disc. Full charts: 2015 Specialized Roubaix SL4 Comp Disc, 2017 Trek Émonda SL.
Where each sits in its class
Specialized Roubaix SL4 Comp DiscTrek Émonda SL
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 Comp DiscSL4 Comp Disc | Trek Émonda SLSL 5 |
|---|---|---|
| Frame | Specialized SL4 FACT | Trek Ultralight 500 |
| Shifter | Shimano 685 | Shimano 105 |
| Derailleur | Shimano Ultegra | Shimano 105 |
| Cassette | Shimano 105 | Shimano 105 |
| Chain | Shimano 105 | Shimano 105 |
| Crankset | Praxis TURN Zayante | Shimano 105 |
| Wheelset | Specialized AXIS 4.0 | not listed |
| Tire | Specialized Turbo Pro | Bontrager R2 Hard-Case Lite |
| Brake | Shimano 785 | Shimano 105 |
| Seatpost | Specialized CG-R | Bontrager Tuned |
| Saddle | Specialized Toupe Comp | Bontrager Montrose |
| Bottom bracket | not listed | Trek BB90 |
| Handlebar | not listed | Bontrager Elite VR-C |
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