dual-sport / default rider 183 cm
BMW G 650 GS Sertao vs Kawasaki KMX125 ergonomics
BMW G 650 GS Sertao and Kawasaki KMX125 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
BMW G 650 GS Sertao
95Comfortable
All contacts reached
Kawasaki KMX125
95Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The BMW G 650 GS Sertao has a 861 mm seat; the Kawasaki KMX125 sits at 865 mm, within a few millimetres of each other. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 86 cm for the BMW G 650 GS Sertao and 87 cm for the Kawasaki KMX125.
Geometry snapshot
| Spec | BMW G 650 GS Sertao | Kawasaki KMX125 |
|---|---|---|
| Seat height | 861 mm | 865 mm |
| Wheelbase | 1,484 mm | 1,375 mm |
| Wet weight | 193 kg | - |
| Displacement | 652 cc | 125 cc |
Posture metrics
Knee angle
- BMW G 650 GS Sertao
- Sport (67.5 deg)
- Kawasaki KMX125
- Sport (67.4 deg)
Hip angle
- BMW G 650 GS Sertao
- Neutral (107.1 deg)
- Kawasaki KMX125
- Neutral (109.4 deg)
Elbow angle
- BMW G 650 GS Sertao
- Relaxed (143.3 deg)
- Kawasaki KMX125
- Relaxed (143.3 deg)
Torso lean
- BMW G 650 GS Sertao
- Neutral (7.0 deg)
- Kawasaki KMX125
- Neutral (5.4 deg)