sport-touring / default rider 183 cm
BMW K100RS vs BMW R 1100 S ergonomics
BMW K100RS and BMW R 1100 S 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 K100RS
All contacts reached
BMW R 1100 S
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 K100RS lists a 800 mm seat; the BMW R 1100 S lists 800 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 K100RS | BMW R 1100 S |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,565 mm | 1,480 mm |
| Wet weight | 243 kg | 229 kg |
| Displacement | 987 cc | 1,085 cc |
Posture metrics
Knee angle
- BMW K100RS
- Sport (58.2 deg)
- BMW R 1100 S
- Sport (58.0 deg)
Hip angle
- BMW K100RS
- Neutral (88.4 deg)
- BMW R 1100 S
- Neutral (89.9 deg)
Elbow angle
- BMW K100RS
- Relaxed (143.3 deg)
- BMW R 1100 S
- Relaxed (143.3 deg)
Torso lean
- BMW K100RS
- Neutral (14.4 deg)
- BMW R 1100 S
- Neutral (13.5 deg)