standard / default rider 183 cm
Kawasaki KZ650 B1 vs Yamaha XSR900 ergonomics
Kawasaki KZ650 B1 and Yamaha XSR900 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 KZ650 B1
All contacts reached
Yamaha XSR900
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 KZ650 B1 lists a 810 mm seat; the Yamaha XSR900 lists 810 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 | Kawasaki KZ650 B1 | Yamaha XSR900 |
|---|---|---|
| Seat height | 810 mm | 810 mm |
| Wheelbase | 1,420 mm | 1,495 mm |
| Wet weight | - | 193 kg |
| Displacement | 652 cc | 890 cc |
Posture metrics
Knee angle
- Kawasaki KZ650 B1
- Sport (58.0 deg)
- Yamaha XSR900
- Sport (58.1 deg)
Hip angle
- Kawasaki KZ650 B1
- Neutral (94.7 deg)
- Yamaha XSR900
- Neutral (93.1 deg)
Elbow angle
- Kawasaki KZ650 B1
- Relaxed (143.3 deg)
- Yamaha XSR900
- Relaxed (143.3 deg)
Torso lean
- Kawasaki KZ650 B1
- Neutral (11.6 deg)
- Yamaha XSR900
- Neutral (12.7 deg)