electric / default rider 183 cm
Ampere Nexus vs BMW C Evolution ergonomics
Ampere Nexus and BMW C Evolution 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
Ampere Nexus
All contacts reached
BMW C Evolution
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 Ampere Nexus lists a 765 mm seat; the BMW C Evolution lists 765 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 | Ampere Nexus | BMW C Evolution |
|---|---|---|
| Seat height | 765 mm | 765 mm |
| Wheelbase | 1,319 mm | 1,610 mm |
| Wet weight | 128 kg | 275 kg |
| Displacement | - | - |
Posture metrics
Knee angle
- Ampere Nexus
- Sport (57.8 deg)
- BMW C Evolution
- Sport (58.5 deg)
Hip angle
- Ampere Nexus
- Neutral (96.9 deg)
- BMW C Evolution
- Neutral (90.5 deg)
Elbow angle
- Ampere Nexus
- Relaxed (143.3 deg)
- BMW C Evolution
- Relaxed (143.3 deg)
Torso lean
- Ampere Nexus
- Neutral (10.1 deg)
- BMW C Evolution
- Neutral (14.4 deg)