moped / default rider 183 cm
Honda Navi vs Yamaha Jupiter Z1 ergonomics
Honda Navi and Yamaha Jupiter Z1 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 Navi
All contacts reached
Yamaha Jupiter Z1
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 Navi lists a 765 mm seat; the Yamaha Jupiter Z1 lists 765 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 Navi | Yamaha Jupiter Z1 |
|---|---|---|
| Seat height | 765 mm | 765 mm |
| Wheelbase | 1,286 mm | 1,240 mm |
| Wet weight | 100 kg | 102 kg |
| Displacement | 109 cc | 114 cc |
Posture metrics
Knee angle
- Honda Navi
- Sport (57.7 deg)
- Yamaha Jupiter Z1
- Sport (57.6 deg)
Hip angle
- Honda Navi
- Neutral (97.6 deg)
- Yamaha Jupiter Z1
- Neutral (98.7 deg)
Elbow angle
- Honda Navi
- Relaxed (143.3 deg)
- Yamaha Jupiter Z1
- Relaxed (143.3 deg)
Torso lean
- Honda Navi
- Neutral (9.6 deg)
- Yamaha Jupiter Z1
- Neutral (8.9 deg)