2017 Specialized Roubaix SL4 Sport vs 2019 Cannondale Synapse Disc Women’s Tiagra
The 54 is the Cannondale Synapse Disc Women’s Tiagra size closest to your 54 Specialized Roubaix SL4 Sport. 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 Disc Women’s Tiagra
Compared with the Specialized Roubaix SL4 Sport in 54, the Cannondale Synapse Disc Women’s Tiagra in 54 places the top of the head tube 6 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 8 mm longer, which can contribute to stability at speed.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +8 mm
- Longer: steadier at speed
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- −2 mm
- About the same
The two frames
Specialized Roubaix SL4 Sport, 54Cannondale Synapse Disc Women’s Tiagra, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Sport 54 | Cannondale Synapse Disc Women’s Tiagra 54 | Difference |
|---|---|---|---|
| Reach | 380mm | 382 | +2 mm |
| Stack | 564mm | 570 | +6 mm |
| Head tube angle | 72° | 71.7 | −0.3° |
| Seat tube angle | 73.5° | 73.9 | +0.4° |
| Effective top tube | 547mm | 547 | ±0 mm |
| Chainstay length | 415mm | 413 | −2 mm |
| Wheelbase | 1000mm | 1008 | +8 mm |
| BB drop | 71.5mm | 73 | +2 mm |
| BB height | 271mm | 272 | +1 mm |
| Standover | 776mm | 773 | −3 mm |
| Seat tube length | 495mm | 480 | −15 mm |
| Fork length | 368mm | not listed | |
| Head tube length | 165mm | 159 | −6 mm |
Differences are the Cannondale Synapse Disc Women’s Tiagra minus the Specialized Roubaix SL4 Sport. Full charts: 2017 Specialized Roubaix SL4 Sport, 2019 Cannondale Synapse Disc Women’s Tiagra.
Where each sits in its class
Specialized Roubaix SL4 SportCannondale Synapse Disc Women’s Tiagra
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 SportSL4 Sport | Cannondale Synapse Disc Women’s TiagraDisc Women’s Tiagra |
|---|---|---|
| Frame | Specialized SL4 FACT | Cannondale Synapse |
| Shifter | Shimano 105 | Shimano Tiagra |
| Derailleur | Shimano 105 | Shimano Tiagra, Shimano Tiagra GS |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X-11 | KMC X10EL |
| Crankset | Praxis Alba | FSA Omega |
| Wheelset | Specialized AXIS Elite | not listed |
| Tire | Specialized Turbo Pro | Vittoria Zaffiro |
| Brake | Specialized Axis 1.0 | Promax DSK 718R, Shimano Tiagra |
| Seatpost | Specialized CG-R | Cannondale C4 |
| Saddle | Specialized Phenom Comp GT | Cannondale Stage |
| Fork | not listed | Synapse |
| Hub | not listed | Formula RX-512 |
| Rim | not listed | RD 3.0 |
| Handlebar | not listed | Cannondale C4 |
| Stem | not listed | Cannondale C4 |
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