standard / default rider 183 cm
Honda GB350 vs Kawasaki Z900RS ergonomics
Honda GB350 and Kawasaki Z900RS 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 GB350
All contacts reached
Kawasaki Z900RS
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 GB350 lists a 800 mm seat; the Kawasaki Z900RS lists 800 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 GB350 | Kawasaki Z900RS |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,440 mm | 1,470 mm |
| Wet weight | 180 kg | 215 kg |
| Displacement | 348 cc | 948 cc |
Posture metrics
Knee angle
- Honda GB350
- Sport (58.0 deg)
- Kawasaki Z900RS
- Sport (58.1 deg)
Hip angle
- Honda GB350
- Neutral (94.3 deg)
- Kawasaki Z900RS
- Neutral (93.6 deg)
Elbow angle
- Honda GB350
- Relaxed (143.3 deg)
- Kawasaki Z900RS
- Relaxed (143.3 deg)
Torso lean
- Honda GB350
- Neutral (11.9 deg)
- Kawasaki Z900RS
- Neutral (12.3 deg)