moped / default rider 183 cm
Vespa LX50 vs Yamaha Sight 115 CW ergonomics
Vespa LX50 and Yamaha Sight 115 CW 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 LX50
All contacts reached
Yamaha Sight 115 CW
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 LX50 lists a 775 mm seat; the Yamaha Sight 115 CW lists 775 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 LX50 | Yamaha Sight 115 CW |
|---|---|---|
| Seat height | 775 mm | 775 mm |
| Wheelbase | 1,280 mm | 1,235 mm |
| Wet weight | 102 kg | 96 kg |
| Displacement | 49 cc | 114 cc |
Posture metrics
Knee angle
- Vespa LX50
- Sport (57.7 deg)
- Yamaha Sight 115 CW
- Sport (57.6 deg)
Hip angle
- Vespa LX50
- Neutral (97.7 deg)
- Yamaha Sight 115 CW
- Neutral (98.8 deg)
Elbow angle
- Vespa LX50
- Relaxed (143.3 deg)
- Yamaha Sight 115 CW
- Relaxed (143.3 deg)
Torso lean
- Vespa LX50
- Neutral (9.5 deg)
- Yamaha Sight 115 CW
- Neutral (8.8 deg)