sport / default rider 183 cm
Kawasaki GPZ900R vs Yamaha RD500LC ergonomics
Kawasaki GPZ900R and Yamaha RD500LC 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 GPZ900R
All contacts reached
Yamaha RD500LC
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 GPZ900R lists a 780 mm seat; the Yamaha RD500LC lists 780 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 GPZ900R | Yamaha RD500LC |
|---|---|---|
| Seat height | 780 mm | 780 mm |
| Wheelbase | 1,495 mm | 1,375 mm |
| Wet weight | - | - |
| Displacement | 908 cc | 499 cc |
Posture metrics
Knee angle
- Kawasaki GPZ900R
- Sport (60.7 deg)
- Yamaha RD500LC
- Sport (60.7 deg)
Hip angle
- Kawasaki GPZ900R
- Neutral (99.3 deg)
- Yamaha RD500LC
- Neutral (99.5 deg)
Elbow angle
- Kawasaki GPZ900R
- Relaxed (143.3 deg)
- Yamaha RD500LC
- Relaxed (143.3 deg)
Torso lean
- Kawasaki GPZ900R
- Forward (25.9 deg)
- Yamaha RD500LC
- Forward (25.3 deg)