2018 Cannondale Synapse Carbon Disc SE vs 2016 Specialized Roubaix SL4 Expert Disc UDi2
The 56.0 is the Specialized Roubaix SL4 Expert Disc UDi2 size closest to your 56 Cannondale Synapse Carbon Disc SE. 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 Expert Disc UDi2
Compared with the Cannondale Synapse Carbon Disc SE in 56, the Specialized Roubaix SL4 Expert Disc UDi2 in 56.0 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket. Its wheelbase is 16 mm longer, which can contribute to stability at speed.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- +1 mm
- About the same reach
- Wheelbase
- +16 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Cannondale Synapse Carbon Disc SE numbers we have for size 56 are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Cannondale Synapse Carbon Disc SE 56 | Specialized Roubaix SL4 Expert Disc UDi2 56.0 | Difference |
|---|---|---|---|
| Reach | 386 | 387 | +1 mm |
| Stack | 590 | 590 | ±0 mm |
| Head tube angle | 73 | 72.5 | −0.5° |
| Seat tube angle | 73.5 | 73.25 | −0.3° |
| Effective top tube | 561 | 565 | +4 mm |
| Wheelbase | 995 | 1011 | +16 mm |
| BB drop | 73 | 71.5 | −2 mm |
| BB height | 272 | 271 | −1 mm |
| Standover | 804 | 798 | −6 mm |
| Seat tube length | 520 | 515 | −5 mm |
| Head tube length | 173 | 190 | +17 mm |
| Chainstay length | not listed | 415 | |
| Fork length | not listed | 368 |
Differences are the Specialized Roubaix SL4 Expert Disc UDi2 minus the Cannondale Synapse Carbon Disc SE. Full charts: 2018 Cannondale Synapse Carbon Disc SE, 2016 Specialized Roubaix SL4 Expert Disc UDi2.
Where each sits in its class
Cannondale Synapse Carbon Disc SESpecialized Roubaix SL4 Expert Disc UDi2
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 | Cannondale Synapse Carbon Disc SECarbon Disc Apex 1 SE | Specialized Roubaix SL4 Expert Disc UDi2SL4 Expert Disc UDi2 |
|---|---|---|
| Frame | Cannondale Synapse | Specialized SL4 FACT |
| Fork | Synapse | Specialized FACT carbon |
| Shifter | SRAM Apex 1 HRD | Shimano 785 Di2 |
| Derailleur | SRAM Apex 1 | Shimano Ultegra Di2 |
| Cassette | SRAM PG 1130 | Shimano Ultegra |
| Chain | SRAM 1110 | Shimano Ultegra |
| Crankset | SRAM Apex 1 BB30a | Shimano Ultegra |
| Bottom bracket | FSA BB30A | not listed |
| Tire | WTB Exposure | Specialized Turbo Pro |
| Hub | Formula RX-512 | not listed |
| Rim | WTB STP i19 TCS | not listed |
| Brake | SRAM Apex 1 hydro, SRAM Apex 1 HRD | Shimano BR-785 |
| Handlebar | Cannondale C3 | Specialized Expert |
| Stem | Cannondale C3 | Specialized Pro SL |
| Bar tape | Cannondale Tape | Specialized CX Pro |
| Headset | Synapse Si | not listed |
| Seatpost | Cannondale C3 | Specialized CG-R |
| Saddle | Fabric Scoop Radius Sport | Specialized Phenom Expert |
| Wheelset | not listed | Fulcrum S-19 |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
