moped / default rider 183 cm
Honda Biz125 vs Piaggio Zip 50 ergonomics
Honda Biz125 and Piaggio Zip 50 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
Honda Biz125
All contacts reached
Piaggio Zip 50
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 Honda Biz125 lists a 749 mm seat; the Piaggio Zip 50 lists 750 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 | Honda Biz125 | Piaggio Zip 50 |
|---|---|---|
| Seat height | 749 mm | 750 mm |
| Wheelbase | 1,261 mm | 1,230 mm |
| Wet weight | - | 95 kg |
| Displacement | 124 cc | 49 cc |
Posture metrics
Knee angle
- Honda Biz125
- Sport (57.6 deg)
- Piaggio Zip 50
- Sport (57.6 deg)
Hip angle
- Honda Biz125
- Neutral (98.3 deg)
- Piaggio Zip 50
- Neutral (98.8 deg)
Elbow angle
- Honda Biz125
- Relaxed (143.3 deg)
- Piaggio Zip 50
- Relaxed (143.3 deg)
Torso lean
- Honda Biz125
- Neutral (9.2 deg)
- Piaggio Zip 50
- Neutral (8.8 deg)