motocross / default rider 183 cm
Kawasaki KDX50 vs Suzuki JR50 ergonomics
Kawasaki KDX50 and Suzuki JR50 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 KDX50
All contacts reached
Suzuki JR50
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 KDX50 lists a 480 mm seat; the Suzuki JR50 lists 480 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 KDX50 | Suzuki JR50 |
|---|---|---|
| Seat height | 480 mm | 480 mm |
| Wheelbase | 861 mm | 861 mm |
| Wet weight | - | - |
| Displacement | 49 cc | 49 cc |
Posture metrics
Knee angle
- Kawasaki KDX50
- Sport (57.0 deg)
- Suzuki JR50
- Sport (57.0 deg)
Hip angle
- Kawasaki KDX50
- Neutral (108.2 deg)
- Suzuki JR50
- Neutral (108.2 deg)
Elbow angle
- Kawasaki KDX50
- Relaxed (143.3 deg)
- Suzuki JR50
- Relaxed (143.3 deg)
Torso lean
- Kawasaki KDX50
- Upright (2.4 deg)
- Suzuki JR50
- Upright (2.4 deg)