standard / default rider 183 cm
Kawasaki KZ400 vs Yamaha XS1100 ergonomics
Kawasaki KZ400 and Yamaha XS1100 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Kawasaki KZ400
All contacts reached
Yamaha XS1100
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Kawasaki KZ400 has a 830 mm seat; the Yamaha XS1100 sits at 820 mm — a 10 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 83 cm for the Kawasaki KZ400 and 82 cm for the Yamaha XS1100.
That makes the Yamaha XS1100 the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Kawasaki KZ400 gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.
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)