2017 Specialized Roubaix SL4 Comp vs 2019 Cannondale Synapse Disc Women’s Tiagra
The 54 is the Cannondale Synapse Disc Women’s Tiagra size closest to your 58 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 Disc Women’s Tiagra
Compared with the Specialized Roubaix SL4 Comp in 58, the Cannondale Synapse Disc Women’s Tiagra in 54 places the top of the head tube 52 mm lower and 10 mm further back, relative to the bottom bracket. Its wheelbase is 21 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −52 mm
- Lower front end
- Frame reach
- −10 mm
- Shorter frame reach
- Wheelbase
- −21 mm
- Shorter: quicker to change direction
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
Specialized Roubaix SL4 Comp, 58Cannondale Synapse Disc Women’s Tiagra, 54Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Comp 58 | Cannondale Synapse Disc Women’s Tiagra 54 | Difference |
|---|---|---|---|
| Reach | 392mm | 382 | −10 mm |
| Stack | 622mm | 570 | −52 mm |
| Head tube angle | 72.5° | 71.7 | −0.8° |
| Seat tube angle | 73° | 73.9 | +0.9° |
| Effective top tube | 582mm | 547 | −35 mm |
| Chainstay length | 418mm | 413 | −5 mm |
| Wheelbase | 1029mm | 1008 | −21 mm |
| BB drop | 70mm | 73 | +3 mm |
| BB height | 272.5mm | 272 | −1 mm |
| Standover | 829mm | 773 | −56 mm |
| Seat tube length | 540mm | 480 | −60 mm |
| Fork length | 368mm | not listed | |
| Head tube length | 225mm | 159 | −66 mm |
Differences are the Cannondale Synapse Disc Women’s Tiagra minus the Specialized Roubaix SL4 Comp. Full charts: 2017 Specialized Roubaix SL4 Comp, 2019 Cannondale Synapse Disc Women’s Tiagra.
Where each sits in its class
Specialized Roubaix SL4 CompCannondale 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 CompSL4 Comp Di2 | Cannondale Synapse Disc Women’s TiagraDisc Women’s Tiagra |
|---|---|---|
| Frame | Specialized SL4 FACT | Cannondale Synapse |
| Shifter | Shimano Ultegra Di2 | Shimano Tiagra |
| Derailleur | Shimano Ultegra R6870 Di2, Shimano Ultegra Di2 | Shimano Tiagra, Shimano Tiagra GS |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X-11 | KMC X10EL |
| Crankset | Praxis Zayante | FSA Omega |
| Wheelset | Specialized AXIS Elite | not listed |
| Tire | Specialized Turbo Pro | Vittoria Zaffiro |
| Brake | Shimano 105 | 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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