dual-sport / default rider 183 cm
BMW G 650 GS Sertao vs Yamaha XT550 ergonomics
BMW G 650 GS Sertao and Yamaha XT550 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 G 650 GS Sertao
All contacts reached
Yamaha XT550
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 G 650 GS Sertao lists a 861 mm seat; the Yamaha XT550 lists 860 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 G 650 GS Sertao | Yamaha XT550 |
|---|---|---|
| Seat height | 861 mm | 860 mm |
| Wheelbase | 1,484 mm | 1,400 mm |
| Wet weight | 193 kg | 145 kg |
| Displacement | 652 cc | 558 cc |
Posture metrics
Knee angle
- BMW G 650 GS Sertao
- Sport (67.5 deg)
- Yamaha XT550
- Sport (67.4 deg)
Hip angle
- BMW G 650 GS Sertao
- Neutral (107.1 deg)
- Yamaha XT550
- Neutral (108.7 deg)
Elbow angle
- BMW G 650 GS Sertao
- Relaxed (143.3 deg)
- Yamaha XT550
- Relaxed (143.3 deg)
Torso lean
- BMW G 650 GS Sertao
- Neutral (7.0 deg)
- Yamaha XT550
- Neutral (5.8 deg)