moped / default rider 183 cm
Vespa Sprint 50 S vs Yamaha PG-1 ergonomics
Vespa Sprint 50 S and Yamaha PG-1 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 Sprint 50 S
All contacts reached
Yamaha PG-1
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 Sprint 50 S lists a 790 mm seat; the Yamaha PG-1 lists 795 mm — a 5 mm difference. 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.
On seat height alone, the Vespa Sprint 50 S has the easier modeled ground reach. Load your measurements into the simulator to compare the model, then verify both motorcycles in person.
Geometry snapshot
| Spec | Vespa Sprint 50 S | Yamaha PG-1 |
|---|---|---|
| Seat height | 790 mm | 795 mm |
| Wheelbase | 1,330 mm | 1,280 mm |
| Wet weight | 118 kg | 107 kg |
| Displacement | 49 cc | 114 cc |
Posture metrics
Knee angle
- Vespa Sprint 50 S
- Sport (57.8 deg)
- Yamaha PG-1
- Sport (57.7 deg)
Hip angle
- Vespa Sprint 50 S
- Neutral (96.6 deg)
- Yamaha PG-1
- Neutral (97.7 deg)
Elbow angle
- Vespa Sprint 50 S
- Relaxed (143.3 deg)
- Yamaha PG-1
- Relaxed (143.3 deg)
Torso lean
- Vespa Sprint 50 S
- Neutral (10.3 deg)
- Yamaha PG-1
- Neutral (9.5 deg)