Road endurance
Cannondale Synapse (alloy)
2025 · 700c wheels · 7 sizes
Aluminium endurance road bike with a SmartForm C2 alloy frame and a full carbon fork, shown here as the Synapse 2. The effective seat angle is 73 degrees and the chainstays are 415 mm in every size, while the head angle steepens from 70.2 degrees on the 44 to 72 degrees from the 56 upward. Cannondale publishes these figures in centimetres, and they are shown here in millimetres.
Source: www.cannondale.com/en-us/bikes/road/endurance/synapse/synapse-2
I ride:
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | 44 | 48 | 51 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Stack (mm) | 510 | 530 | 550 | 570 | 590 | 610 | 640 |
| Reach (mm) | 365 | 371 | 376 | 381 | 387 | 393 | 402 |
| Head angle (°) | 70.2 | 70.8 | 71.0 | 71.9 | 72.0 | 72.0 | 72.0 |
| Seat angle (°) | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 |