standard / default rider 183 cm
BMW K 100 vs BMW R80/7 ergonomics
BMW K 100 and BMW R80/7 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 K 100
95Comfortable
All contacts reached
BMW R80/7
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 K 100 has a 810 mm seat; the BMW R80/7 sits at 810 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 81 cm for the BMW K 100 and 81 cm for the BMW R80/7.
Geometry snapshot
| Spec | BMW K 100 | BMW R80/7 |
|---|---|---|
| Seat height | 810 mm | 810 mm |
| Wheelbase | 1,516 mm | 1,465 mm |
| Wet weight | - | 215 kg |
| Displacement | 987 cc | 797 cc |
Posture metrics
Knee angle
- BMW K 100
- Sport (58.2 deg)
- BMW R80/7
- Sport (58.1 deg)
Hip angle
- BMW K 100
- Neutral (92.5 deg)
- BMW R80/7
- Neutral (93.8 deg)
Elbow angle
- BMW K 100
- Relaxed (143.3 deg)
- BMW R80/7
- Relaxed (143.3 deg)
Torso lean
- BMW K 100
- Neutral (13.0 deg)
- BMW R80/7
- Neutral (12.2 deg)