2017 Specialized Roubaix SL4 Comp vs 2018 Cannondale Synapse Hi-MOD Disc
The 51 is the Cannondale Synapse Hi-MOD Disc size closest to your 49 Specialized Roubaix SL4 Comp. 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 Cannondale Synapse Hi-MOD Disc
Compared with the Specialized Roubaix SL4 Comp in 49, the Cannondale Synapse Hi-MOD Disc in 51 places the top of the head tube 22 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 11 mm longer, which can contribute to stability at speed.
- Frame stack
- +22 mm
- Higher front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- +11 mm
- Longer: steadier at speed
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the Specialized Roubaix SL4 Comp is drawn. The Cannondale Synapse Hi-MOD Disc numbers we have for size 51 are missing the chainstay length.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Comp 49 | Cannondale Synapse Hi-MOD Disc 51 | Difference |
|---|---|---|---|
| Reach | 378mm | 377 | −1 mm |
| Stack | 528mm | 550 | +22 mm |
| Head tube angle | 72° | 71.7 | −0.3° |
| Seat tube angle | 75.5° | 74.3 | −1.2° |
| Effective top tube | 514mm | 531 | +17 mm |
| Chainstay length | 412mm | not listed | |
| Wheelbase | 983mm | 994 | +11 mm |
| BB drop | 73mm | not listed | |
| BB height | 269.5mm | not listed | |
| Standover | 730mm | 742 | +12 mm |
| Seat tube length | 445mm | 443 | −2 mm |
| Fork length | 368mm | not listed | |
| Head tube length | 125mm | 137 | +12 mm |
Differences are the Cannondale Synapse Hi-MOD Disc minus the Specialized Roubaix SL4 Comp. Full charts: 2017 Specialized Roubaix SL4 Comp, 2018 Cannondale Synapse Hi-MOD Disc.
Where each sits in its class
Specialized Roubaix SL4 CompCannondale Synapse Hi-MOD Disc
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 CompSL4 Comp Di2 | Cannondale Synapse Hi-MOD DiscHi-MOD Disc Dura-Ace |
|---|---|---|
| Frame | Specialized SL4 FACT | Cannondale Synapse |
| Shifter | Shimano Ultegra Di2 | Shimano Dura-Ace R9120 hydro |
| Derailleur | Shimano Ultegra R6870 Di2, Shimano Ultegra Di2 | Shimano Dura-Ace R9100 |
| Cassette | Shimano 105 | Shimano Ultegra R6800 |
| Chain | KMC X-11 | Shimano HG701 |
| Crankset | Praxis Zayante | Cannondale HollowGram Si |
| Wheelset | Specialized AXIS Elite | Cannondale HollowGram |
| Tire | Specialized Turbo Pro | not listed |
| Brake | Shimano 105 | Shimano Dura-Ace R9170, Shimano Dura-Ace R9120 hydro |
| Seatpost | Specialized CG-R | Cannondale SAVE |
| Saddle | Specialized Phenom Comp GT | Fabric Scoop |
| Fork | not listed | Synapse |
| Handlebar | not listed | Cannondale C1 Ultralight |
| Stem | not listed | Cannondale SAVE |
| Headset | not listed | Synapse Si |
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