bike geometry
Synapse Carbon 2026
Compare size-specific bike geometry, including reach, stack, angles, wheelbase and the measurements that influence fit and handling.
Cannondale › Synapse › Standard › Synapse Carbon
Synapse Carbon geometry measurements
Choose the recorded size and configuration. Geometry figures can change by size; RideDNA does not collapse those values into one misleading answer.
What is the reach of the Synapse Carbon?
Reach is the horizontal distance from the bottom bracket to the top of the head tube. Also searched as frame reach.
| Configuration | Size | Reach | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 370.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 386.7 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 380.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 366 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 375.9 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 393.4 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 402.4 mm | RideDNA-derived |
What is the stack of the Synapse Carbon?
Stack is the vertical distance from the bottom bracket to the top of the head tube. Also searched as frame stack.
| Configuration | Size | Stack | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 530.4 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 589.6 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 569.7 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 510.2 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 549.9 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 610.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 639.6 mm | RideDNA-derived |
What is the effective top tube of the Synapse Carbon?
Effective top tube is the horizontal distance between the head-tube and seat-tube centerlines. Also searched as ETT, virtual top tube, horizontal top tube.
| Configuration | Size | Effective top tube | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 533 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 567 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 555 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 522 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 544 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 580 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 598 mm | RideDNA-derived |
What is the head tube angle of the Synapse Carbon?
Head tube angle describes the steering-axis angle relative to the ground. Also searched as HTA, head angle, steering angle.
| Configuration | Size | Head tube angle | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 70.9 ° | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 71.3 ° | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 71.3 ° | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 69.8 ° | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 71.3 ° | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 71.3 ° | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 71.3 ° | RideDNA-derived |
What is the seat tube angle of the Synapse Carbon?
Seat tube angle describes the seat-tube angle relative to the ground. Also searched as STA, seat angle, effective seat angle.
| Configuration | Size | Seat tube angle | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 73 ° | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 73 ° | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 73 ° | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 73 ° | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 73 ° | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 73 ° | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 73 ° | RideDNA-derived |
What is the wheelbase of the Synapse Carbon?
Wheelbase is the distance between the front and rear wheel axles. Also searched as axle-to-axle length.
| Configuration | Size | Wheelbase | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 1005.1 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 1043.4 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 1025.7 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 1003.1 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 1013 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 1058.6 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 1077.6 mm | RideDNA-derived |
What is the chainstay length of the Synapse Carbon?
Chainstay length, also called rear center, is the distance from the bottom bracket to the rear axle. Also searched as Chainstay, rear center, rear centre.
| Configuration | Size | Chainstay length | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 418.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 423.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 418.7 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 418.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 418.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 424.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 424.3 mm | RideDNA-derived |
What is the bottom bracket height of the Synapse Carbon?
Bottom bracket height is the vertical distance from the ground to the bottom bracket. Also searched as BB height.
| Configuration | Size | Bottom bracket height | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 277.9 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 278.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 278.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 277.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 276.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 281.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 281.8 mm | RideDNA-derived |
What is the front center of the Synapse Carbon?
Front center is the distance from the bottom bracket to the front wheel axle. Also searched as front centre.
| Configuration | Size | Front center | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 591.5 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 624 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 611.4 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 589.5 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 599.4 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 638.2 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 657.1 mm | RideDNA-derived |
What is the fork offset of the Synapse Carbon?
Fork offset is the perpendicular distance between the steering axis and the front axle. Also searched as fork rake, rake.
| Configuration | Size | Fork offset | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 55 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 55 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 55 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 55 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 55 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 55 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 55 mm | RideDNA-derived |
What is the head tube length of the Synapse Carbon?
Head tube length is the measured length of the frame's head tube. Also searched as Head tube, head tube.
| Configuration | Size | Head tube length | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 108 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 171 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 150 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 91 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 127 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 196 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 227 mm | RideDNA-derived |
What is the seat tube length of the Synapse Carbon?
Seat tube length is the recorded length of the frame's seat tube; measurement conventions can differ by manufacturer. Also searched as Seat tube, seat tube, frame size.
| Configuration | Size | Seat tube length | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 407 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 520 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 480 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 407 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 443 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 550 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 590 mm | RideDNA-derived |
What is the standover height of the Synapse Carbon?
Standover height is the ground-to-top-tube height at the manufacturer's stated measurement point. Also searched as Standover, stand over height, standover clearance.
| Configuration | Size | Standover height | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 711.4 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 795.9 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 766.9 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 700.7 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 737.3 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 823.6 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 857.4 mm | RideDNA-derived |
What is the fork length of the Synapse Carbon?
Fork length is the axle-to-crown distance recorded for the fork. Also searched as axle to crown, A2C.
| Configuration | Size | Fork length | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 393 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 393 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 393 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 393 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 393 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 393 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 393 mm | RideDNA-derived |
What is the wheel flop of the Synapse Carbon?
Wheel flop is a calculated steering-geometry value based on trail and head tube angle. Also searched as flop.
| Configuration | Size | Wheel flop | Source |
|---|---|---|---|
| Synapse Carbon geometry | 48.0 | 19.8 mm | RideDNA-derived |
| Synapse Carbon geometry | 56.0 | 18.5 mm | RideDNA-derived |
| Synapse Carbon geometry | 54.0 | 18.5 mm | RideDNA-derived |
| Synapse Carbon geometry | 44.0 | 23 mm | RideDNA-derived |
| Synapse Carbon geometry | 51.0 | 18.5 mm | RideDNA-derived |
| Synapse Carbon geometry | 58.0 | 18.5 mm | RideDNA-derived |
| Synapse Carbon geometry | 61.0 | 18.5 mm | RideDNA-derived |
Geometry
Available sizes: 48.0, 56.0, 54.0, 44.0, 51.0, 58.0, 61.0.
Synapse Carbon geometry
Jump to size: 44.0 · 48.0 · 51.0 · 54.0 · 56.0 · 58.0 · 61.0
| Size | Reach | Stack | ETT | HTA | STA | Trail | Wheelbase | Chainstay | BB drop | BB height | Front center | Fork offset | Head tube | Seat tube | Standover | Fork length | Wheel flop | Max tire |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44.0 | 366 mm | 510.2 mm | 522 mm | 69.8 ° | 73 ° | — | 1003.1 mm | 418.3 mm | — | 277.3 mm | 589.5 mm | 55 mm | 91 mm | 407 mm | 700.7 mm | 393 mm | 23 mm | — |
| 48.0 | 370.8 mm | 530.4 mm | 533 mm | 70.9 ° | 73 ° | — | 1005.1 mm | 418.3 mm | — | 277.9 mm | 591.5 mm | 55 mm | 108 mm | 407 mm | 711.4 mm | 393 mm | 19.8 mm | — |
| 51.0 | 375.9 mm | 549.9 mm | 544 mm | 71.3 ° | 73 ° | — | 1013 mm | 418.3 mm | — | 276.8 mm | 599.4 mm | 55 mm | 127 mm | 443 mm | 737.3 mm | 393 mm | 18.5 mm | — |
| 54.0 | 380.8 mm | 569.7 mm | 555 mm | 71.3 ° | 73 ° | — | 1025.7 mm | 418.7 mm | — | 278.8 mm | 611.4 mm | 55 mm | 150 mm | 480 mm | 766.9 mm | 393 mm | 18.5 mm | — |
| 56.0 | 386.7 mm | 589.6 mm | 567 mm | 71.3 ° | 73 ° | — | 1043.4 mm | 423.8 mm | — | 278.8 mm | 624 mm | 55 mm | 171 mm | 520 mm | 795.9 mm | 393 mm | 18.5 mm | — |
| 58.0 | 393.4 mm | 610.3 mm | 580 mm | 71.3 ° | 73 ° | — | 1058.6 mm | 424.3 mm | — | 281.8 mm | 638.2 mm | 55 mm | 196 mm | 550 mm | 823.6 mm | 393 mm | 18.5 mm | — |
| 61.0 | 402.4 mm | 639.6 mm | 598 mm | 71.3 ° | 73 ° | — | 1077.6 mm | 424.3 mm | — | 281.8 mm | 657.1 mm | 55 mm | 227 mm | 590 mm | 857.4 mm | 393 mm | 18.5 mm | — |
Length measurements are in millimeters; HTA and STA are in degrees. ETT means effective top tube.
Size-to-size changes
Differences are calculated from the recorded values; they are not fit recommendations.
- Synapse Carbon geometry: 44.0 → 48.0 — Reach +4.8 mm, Stack +20.2 mm, ETT +11 mm, HTA +1.1 °, STA +0 °, Wheelbase +2 mm, Chainstay +0 mm, BB height +0.6 mm, Front center +2 mm, Fork offset +0 mm, Head tube +17 mm, Seat tube +0 mm, Standover +10.7 mm, Fork length +0 mm, Wheel flop -3.2 mm
- Synapse Carbon geometry: 48.0 → 51.0 — Reach +5.1 mm, Stack +19.5 mm, ETT +11 mm, HTA +0.4 °, STA +0 °, Wheelbase +7.9 mm, Chainstay +0 mm, BB height -1.1 mm, Front center +7.9 mm, Fork offset +0 mm, Head tube +19 mm, Seat tube +36 mm, Standover +25.9 mm, Fork length +0 mm, Wheel flop -1.3 mm
- Synapse Carbon geometry: 51.0 → 54.0 — Reach +4.9 mm, Stack +19.8 mm, ETT +11 mm, HTA +0 °, STA +0 °, Wheelbase +12.7 mm, Chainstay +0.4 mm, BB height +2 mm, Front center +12 mm, Fork offset +0 mm, Head tube +23 mm, Seat tube +37 mm, Standover +29.6 mm, Fork length +0 mm, Wheel flop +0 mm
- Synapse Carbon geometry: 54.0 → 56.0 — Reach +5.9 mm, Stack +19.9 mm, ETT +12 mm, HTA +0 °, STA +0 °, Wheelbase +17.7 mm, Chainstay +5.1 mm, BB height +0 mm, Front center +12.6 mm, Fork offset +0 mm, Head tube +21 mm, Seat tube +40 mm, Standover +29 mm, Fork length +0 mm, Wheel flop +0 mm
- Synapse Carbon geometry: 56.0 → 58.0 — Reach +6.7 mm, Stack +20.7 mm, ETT +13 mm, HTA +0 °, STA +0 °, Wheelbase +15.2 mm, Chainstay +0.5 mm, BB height +3 mm, Front center +14.2 mm, Fork offset +0 mm, Head tube +25 mm, Seat tube +30 mm, Standover +27.7 mm, Fork length +0 mm, Wheel flop +0 mm
- Synapse Carbon geometry: 58.0 → 61.0 — Reach +9 mm, Stack +29.3 mm, ETT +18 mm, HTA +0 °, STA +0 °, Wheelbase +19 mm, Chainstay +0 mm, BB height +0 mm, Front center +18.9 mm, Fork offset +0 mm, Head tube +31 mm, Seat tube +40 mm, Standover +33.8 mm, Fork length +0 mm, Wheel flop +0 mm
RideDNA-derived values
These deterministic calculations use the recorded manufacturer inputs above. They are separate from manufacturer facts and are not fit recommendations.
- Synapse Carbon geometry size 48.0 stack Reach Ratio: 1.43
- Synapse Carbon geometry size 56.0 stack Reach Ratio: 1.52
- Synapse Carbon geometry size 54.0 stack Reach Ratio: 1.5
- Synapse Carbon geometry size 44.0 stack Reach Ratio: 1.39
- Synapse Carbon geometry size 51.0 stack Reach Ratio: 1.46
- Synapse Carbon geometry size 58.0 stack Reach Ratio: 1.55
- Synapse Carbon geometry size 61.0 stack Reach Ratio: 1.59
Bike details
- competitor Model Id
- d20fad55-9d21-4e86-9102-aa0049d68340