scooter / default rider 183 cm
Vespa LX 150 vs Yamaha Zuma 125 ergonomics
Vespa LX 150 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
Vespa LX 150
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 Vespa LX 150 lists a 785 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 | Vespa LX 150 | Yamaha Zuma 125 |
|---|---|---|
| Seat height | 785 mm | 785 mm |
| Wheelbase | 1,290 mm | 1,341 mm |
| Wet weight | - | 128 kg |
| Displacement | 150 cc | 125 cc |
Posture metrics
Knee angle
- Vespa LX 150
- Sport (57.7 deg)
- Yamaha Zuma 125
- Sport (57.8 deg)
Hip angle
- Vespa LX 150
- Neutral (97.6 deg)
- Yamaha Zuma 125
- Neutral (96.5 deg)
Elbow angle
- Vespa LX 150
- Relaxed (143.3 deg)
- Yamaha Zuma 125
- Relaxed (143.3 deg)
Torso lean
- Vespa LX 150
- Neutral (9.6 deg)
- Yamaha Zuma 125
- Neutral (10.4 deg)