scooter / default rider 183 cm
BMW C 400 X vs KYMCO Downtown 300i ergonomics
BMW C 400 X and KYMCO Downtown 300i 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 C 400 X
All contacts reached
KYMCO Downtown 300i
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 C 400 X lists a 775 mm seat; the KYMCO Downtown 300i lists 775 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 C 400 X | KYMCO Downtown 300i |
|---|---|---|
| Seat height | 775 mm | 775 mm |
| Wheelbase | 1,565 mm | 1,544 mm |
| Wet weight | 204 kg | - |
| Displacement | 350 cc | 299 cc |
Posture metrics
Knee angle
- BMW C 400 X
- Sport (58.3 deg)
- KYMCO Downtown 300i
- Sport (58.3 deg)
Hip angle
- BMW C 400 X
- Neutral (91.6 deg)
- KYMCO Downtown 300i
- Neutral (91.9 deg)
Elbow angle
- BMW C 400 X
- Relaxed (143.3 deg)
- KYMCO Downtown 300i
- Relaxed (143.3 deg)
Torso lean
- BMW C 400 X
- Neutral (13.7 deg)
- KYMCO Downtown 300i
- Neutral (13.4 deg)