electric / default rider 183 cm
Alta Motors Redshift SM vs Zero Motorcycles XE ergonomics
Alta Motors Redshift SM and Zero Motorcycles XE 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
Alta Motors Redshift SM
All contacts reached
Zero Motorcycles XE
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 Alta Motors Redshift SM lists a 902 mm seat; the Zero Motorcycles XE lists 899 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 | Alta Motors Redshift SM | Zero Motorcycles XE |
|---|---|---|
| Seat height | 902 mm | 899 mm |
| Wheelbase | 1,438 mm | 1,354 mm |
| Wet weight | 128 kg | 101 kg |
| Displacement | - | - |
Posture metrics
Knee angle
- Alta Motors Redshift SM
- Sport (58.0 deg)
- Zero Motorcycles XE
- Sport (57.8 deg)
Hip angle
- Alta Motors Redshift SM
- Neutral (94.3 deg)
- Zero Motorcycles XE
- Neutral (96.1 deg)
Elbow angle
- Alta Motors Redshift SM
- Relaxed (143.3 deg)
- Zero Motorcycles XE
- Relaxed (143.3 deg)
Torso lean
- Alta Motors Redshift SM
- Neutral (11.9 deg)
- Zero Motorcycles XE
- Neutral (10.6 deg)