2018 Cannondale Synapse Carbon Disc vs 2016 Specialized Roubaix SL4 Expert Disc UDi2
The Specialized Roubaix SL4 Expert Disc UDi2 size closest to your 54 is the 54.0. Compare the 54.0 instead
What changes on the Specialized Roubaix SL4 Expert Disc UDi2
Compared with the Cannondale Synapse Carbon Disc in 54, the Specialized Roubaix SL4 Expert Disc UDi2 in 61.0 places the top of the head tube 73 mm higher and 16 mm further forward, relative to the bottom bracket. Its wheelbase is 31 mm longer, which can contribute to stability at speed.
- Frame stack
- +73 mm
- Higher front end
- Frame reach
- +16 mm
- Longer frame reach
- Wheelbase
- +31 mm
- Longer: steadier at speed
- Head angle
- +1.3°
- Steeper: sharper 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 numbers we have for size 54 are missing the chainstay length. The numbers below still compare.
Geometry side by side
| Measurement | Cannondale Synapse Carbon Disc 54 | Specialized Roubaix SL4 Expert Disc UDi2 61.0 | Difference |
|---|---|---|---|
| Reach | 382 | 398 | +16 mm |
| Stack | 570 | 643 | +73 mm |
| Head tube angle | 71.7 | 73 | +1.3° |
| Seat tube angle | 73.9 | 72.5 | −1.4° |
| Effective top tube | 547 | 601 | +54 mm |
| Wheelbase | 1008 | 1039 | +31 mm |
| BB drop | 73 | 70 | −3 mm |
| BB height | 272 | 272.5 | +1 mm |
| Standover | 773 | 851 | +78 mm |
| Seat tube length | 480 | 565 | +85 mm |
| Head tube length | 161 | 245 | +84 mm |
| Chainstay length | not listed | 420 | |
| Fork length | not listed | 368 |
Differences are the Specialized Roubaix SL4 Expert Disc UDi2 minus the Cannondale Synapse Carbon Disc. Full charts: 2018 Cannondale Synapse Carbon Disc, 2016 Specialized Roubaix SL4 Expert Disc UDi2.
Where each sits in its class
Cannondale Synapse Carbon DiscSpecialized 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 DiscCarbon Disc 105 | Specialized Roubaix SL4 Expert Disc UDi2SL4 Expert Disc UDi2 |
|---|---|---|
| Frame | Cannondale Synapse | Specialized SL4 FACT |
| Fork | Synapse | Specialized FACT carbon |
| Shifter | Shimano RS505 hydro | Shimano 785 Di2 |
| Derailleur | Shimano 105, Shimano 105 GS | Shimano Ultegra Di2 |
| Cassette | Shimano 105 | Shimano Ultegra |
| Chain | Shimano HG601 | Shimano Ultegra |
| Crankset | Cannondale Si | Shimano Ultegra |
| Tire | Schwalbe Lugano | Specialized Turbo Pro |
| Hub | Formula CX20 | not listed |
| Rim | RD 2.0 | not listed |
| Brake | Shimano RS505 hydro | 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 | Selle Royal Seta S1 | Specialized Phenom Expert |
| Wheelset | not listed | Fulcrum S-19 |
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