motocross / default rider 183 cm
Bultaco Pursang 250 Mk IX vs Kawasaki KX85 ergonomics
Bultaco Pursang 250 Mk IX and Kawasaki KX85 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Bultaco Pursang 250 Mk IX
All contacts reached
Kawasaki KX85
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Bultaco Pursang 250 Mk IX has a 787 mm seat; the Kawasaki KX85 sits at 830 mm — a 43 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 79 cm for the Bultaco Pursang 250 Mk IX and 83 cm for the Kawasaki KX85.
That makes the Bultaco Pursang 250 Mk IX 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 KX85 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 | Bultaco Pursang 250 Mk IX | Kawasaki KX85 |
|---|---|---|
| Seat height | 787 mm | 830 mm |
| Wheelbase | 1,422 mm | 1,265 mm |
| Wet weight | - | 76 kg |
| Displacement | 244 cc | 84 cc |
Posture metrics
Knee angle
- Bultaco Pursang 250 Mk IX
- Sport (58.0 deg)
- Kawasaki KX85
- Sport (57.6 deg)
Hip angle
- Bultaco Pursang 250 Mk IX
- Neutral (94.6 deg)
- Kawasaki KX85
- Neutral (98.3 deg)
Elbow angle
- Bultaco Pursang 250 Mk IX
- Relaxed (143.3 deg)
- Kawasaki KX85
- Relaxed (143.3 deg)
Torso lean
- Bultaco Pursang 250 Mk IX
- Neutral (11.7 deg)
- Kawasaki KX85
- Neutral (9.2 deg)