electric / default rider 183 cm
Zero Motorcycles FXS ZF7.2 vs Zero Motorcycles XB ergonomics
Zero Motorcycles FXS ZF7.2 and Zero Motorcycles XB 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
Zero Motorcycles FXS ZF7.2
All contacts reached
Zero Motorcycles XB
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 Zero Motorcycles FXS ZF7.2 lists a 836 mm seat; the Zero Motorcycles XB lists 832 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 | Zero Motorcycles FXS ZF7.2 | Zero Motorcycles XB |
|---|---|---|
| Seat height | 836 mm | 832 mm |
| Wheelbase | 1,422 mm | 1,245 mm |
| Wet weight | 135 kg | 63 kg |
| Displacement | - | - |
Posture metrics
Knee angle
- Zero Motorcycles FXS ZF7.2
- Sport (58.0 deg)
- Zero Motorcycles XB
- Sport (57.6 deg)
Hip angle
- Zero Motorcycles FXS ZF7.2
- Neutral (94.6 deg)
- Zero Motorcycles XB
- Neutral (98.7 deg)
Elbow angle
- Zero Motorcycles FXS ZF7.2
- Relaxed (143.3 deg)
- Zero Motorcycles XB
- Relaxed (143.3 deg)
Torso lean
- Zero Motorcycles FXS ZF7.2
- Neutral (11.7 deg)
- Zero Motorcycles XB
- Neutral (8.9 deg)