adventure / default rider 183 cm
BMW R 100 GS vs Honda Africa Twin ergonomics
BMW R 100 GS and Honda Africa Twin 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
BMW R 100 GS
All contacts reached
Honda Africa Twin
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 BMW R 100 GS lists a 851 mm seat; the Honda Africa Twin lists 851 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 | BMW R 100 GS | Honda Africa Twin |
|---|---|---|
| Seat height | 851 mm | 851 mm |
| Wheelbase | 1,514 mm | 1,575 mm |
| Wet weight | - | 231 kg |
| Displacement | 980 cc | 1,084 cc |
Posture metrics
Knee angle
- BMW R 100 GS
- Sport (65.6 deg)
- Honda Africa Twin
- Sport (65.7 deg)
Hip angle
- BMW R 100 GS
- Neutral (100.5 deg)
- Honda Africa Twin
- Neutral (99.3 deg)
Elbow angle
- BMW R 100 GS
- Relaxed (143.3 deg)
- Honda Africa Twin
- Relaxed (143.3 deg)
Torso lean
- BMW R 100 GS
- Neutral (10.1 deg)
- Honda Africa Twin
- Neutral (11.0 deg)