Cannondale · Road · 2026
Synapse
Cannondale's endurance all-rounder. More upright than the race bikes, ideal for long days.
$4,500 USD
View on Cannondale.comEndurance geo, clearance for 34mm tires, future shock
Geometry explorer
default size 51 (recommended for ~175 cm)Click any measurement on the right to highlight it on the bike. Numbers from the Cannondale Synapse geometry chart.
Size 51 · Cannondale Synapse
Frame Reach380 mm
Geometry · size 5119 measurements
Frame Reach | 380 mm |
Frame Stack | 583 mm |
Head Tube Length | 178 mm |
Top Tube (effective) | 555 mm |
Seat Tube Length | 510 mm |
Seat Tube Angle from horizontal | 73.5° |
Head Tube Angle from horizontal | 71.5° |
Chainstay Length | 418 mm |
Wheelbase | 1010 mm |
Fork Rake / Offset | 55 mm |
BB Drop BB below axles | 80 mm |
Standover Height | — |
Stack to Stem | — |
Reach to Stem | — |
Stem Length | — |
Saddle Width | — |
Seatpost Length | — |
Crank Length | — |
Handlebar Width | — |
Click a row to highlight the measurement on the bike. Sourced from the official Cannondale Synapse geometry chart.
All sizes — 6 total
| Size | Reach (mm) | Stack (mm) | S/R ratio |
|---|---|---|---|
| 44 | 363 | 547 | 1.51 |
| 48 | 372 | 565 | 1.52 |
| 51 | 380 | 583 | 1.53 |
| 54 | 388 | 600 | 1.55 |
| 56 | 397 | 615 | 1.55 |
| 58 | 405 | 630 | 1.56 |