standard / default rider 183 cm
Kawasaki KZ400 vs Yamaha XS1100 ergonomics
Kawasaki KZ400 and Yamaha XS1100 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
Kawasaki KZ400
All contacts reached
Yamaha XS1100
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 Kawasaki KZ400 lists a 830 mm seat; the Yamaha XS1100 lists 820 mm — a 10 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 Yamaha XS1100 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 | Kawasaki KZ400 | Yamaha XS1100 |
|---|---|---|
| Seat height | 830 mm | 820 mm |
| Wheelbase | 1,360 mm | 1,530 mm |
| Wet weight | - | 260 kg |
| Displacement | 398 cc | 1,101 cc |
Posture metrics
Knee angle
- Kawasaki KZ400
- Sport (57.9 deg)
- Yamaha XS1100
- Sport (58.3 deg)
Hip angle
- Kawasaki KZ400
- Neutral (95.9 deg)
- Yamaha XS1100
- Neutral (92.2 deg)
Elbow angle
- Kawasaki KZ400
- Relaxed (143.3 deg)
- Yamaha XS1100
- Relaxed (143.3 deg)
Torso lean
- Kawasaki KZ400
- Neutral (10.7 deg)
- Yamaha XS1100
- Neutral (13.2 deg)