scooter / default rider 183 cm
Piaggio Liberty 150 vs Vespa GTS 300 ergonomics
Piaggio Liberty 150 and Vespa GTS 300 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 Liberty 150
All contacts reached
Vespa GTS 300
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 Liberty 150 lists a 790 mm seat; the Vespa GTS 300 lists 790 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 Liberty 150 | Vespa GTS 300 |
|---|---|---|
| Seat height | 790 mm | 790 mm |
| Wheelbase | 1,340 mm | 1,380 mm |
| Wet weight | 118 kg | 155 kg |
| Displacement | 155 cc | 278 cc |
Posture metrics
Knee angle
- Piaggio Liberty 150
- Sport (57.8 deg)
- Vespa GTS 300
- Sport (57.9 deg)
Hip angle
- Piaggio Liberty 150
- Neutral (96.5 deg)
- Vespa GTS 300
- Neutral (95.5 deg)
Elbow angle
- Piaggio Liberty 150
- Relaxed (143.3 deg)
- Vespa GTS 300
- Relaxed (143.3 deg)
Torso lean
- Piaggio Liberty 150
- Neutral (10.4 deg)
- Vespa GTS 300
- Neutral (11.0 deg)