scooter / default rider 183 cm
Piaggio Liberty 150 S LED vs Yamaha Zuma 125 ergonomics
Piaggio Liberty 150 S LED and Yamaha Zuma 125 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 S LED
All contacts reached
Yamaha Zuma 125
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 S LED lists a 787 mm seat; the Yamaha Zuma 125 lists 785 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 S LED | Yamaha Zuma 125 |
|---|---|---|
| Seat height | 787 mm | 785 mm |
| Wheelbase | 1,350 mm | 1,341 mm |
| Wet weight | 116 kg | 128 kg |
| Displacement | 155 cc | 125 cc |
Posture metrics
Knee angle
- Piaggio Liberty 150 S LED
- Sport (57.8 deg)
- Yamaha Zuma 125
- Sport (57.8 deg)
Hip angle
- Piaggio Liberty 150 S LED
- Neutral (96.2 deg)
- Yamaha Zuma 125
- Neutral (96.5 deg)
Elbow angle
- Piaggio Liberty 150 S LED
- Relaxed (143.3 deg)
- Yamaha Zuma 125
- Relaxed (143.3 deg)
Torso lean
- Piaggio Liberty 150 S LED
- Neutral (10.6 deg)
- Yamaha Zuma 125
- Neutral (10.4 deg)