scooter / default rider 183 cm
Piaggio X9 500 vs Vespa Primavera 150 ergonomics
Piaggio X9 500 and Vespa Primavera 150 have modeled posture scores within three points for the 183 cm default rider. Treat this as a planning estimate; posture preference, data confidence, and a real test sit still matter.
Modeled fit comparison
Piaggio X9 500
All contacts reached
Vespa Primavera 150
All contacts reached
The modeled scores are within three points, so the result does not distinguish a higher-scoring bike. Treat the result as a planning estimate and compare each bike's geometry confidence before a real test sit.
Rider fit: reaching the ground
The Piaggio X9 500 lists a 780 mm seat; the Vespa Primavera 150 lists 780 mm, within a few millimetres of each other. Seat height is only a first-pass ground-reach input. It does not establish safety or actual foot contact. Seat width, suspension sag, boots, mobility, load, and individual proportions can materially change the result.
Geometry snapshot
| Spec | Piaggio X9 500 | Vespa Primavera 150 |
|---|---|---|
| Seat height | 780 mm | 780 mm |
| Wheelbase | 1,529 mm | 1,340 mm |
| Wet weight | 210 kg | 130 kg |
| Displacement | 460 cc | 155 cc |
Posture metrics
Knee angle
- Piaggio X9 500
- Sport (58.2 deg)
- Vespa Primavera 150
- Sport (57.8 deg)
Hip angle
- Piaggio X9 500
- Neutral (92.4 deg)
- Vespa Primavera 150
- Neutral (96.5 deg)
Elbow angle
- Piaggio X9 500
- Relaxed (143.3 deg)
- Vespa Primavera 150
- Relaxed (143.3 deg)
Torso lean
- Piaggio X9 500
- Neutral (13.2 deg)
- Vespa Primavera 150
- Neutral (10.4 deg)