cruiser / default rider 183 cm
BMW R 18 vs Honda Rebel 500 ergonomics
Honda Rebel 500 has the higher modeled posture score (100 vs 92) for the 183 cm default rider compared with BMW R 18. Treat this as a planning estimate, not a comfort or purchase verdict; compare the source confidence and confirm both bikes in person.
Modeled fit comparison
BMW R 18
All contacts reached
Honda Rebel 500
All contacts reached
Honda Rebel 500 scores higher for the 183 cm default rider in this model. 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 18 lists a 690 mm seat; the Honda Rebel 500 lists 690 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 18 | Honda Rebel 500 |
|---|---|---|
| Seat height | 690 mm | 690 mm |
| Wheelbase | 1,731 mm | 1,490 mm |
| Wet weight | 345 kg | 191 kg |
| Displacement | 1,802 cc | 471 cc |
Posture metrics
Knee angle
- BMW R 18
- Open (128.8 deg)
- Honda Rebel 500
- Neutral (95.0 deg)
Hip angle
- BMW R 18
- Sport (81.7 deg)
- Honda Rebel 500
- Neutral (90.5 deg)
Elbow angle
- BMW R 18
- Relaxed (143.3 deg)
- Honda Rebel 500
- Relaxed (143.3 deg)
Torso lean
- BMW R 18
- Neutral (11.4 deg)
- Honda Rebel 500
- Neutral (6.6 deg)