electric / default rider 183 cm
Arc Vehicle Vector vs NIU RQi Sport ergonomics
Arc Vehicle Vector and NIU RQi Sport land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Arc Vehicle Vector
95Comfortable
All contacts reached
NIU RQi Sport
95Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Arc Vehicle Vector has a 825 mm seat; the NIU RQi Sport sits at 825 mm, within a few millimetres of each other. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 83 cm for the Arc Vehicle Vector and 83 cm for the NIU RQi Sport.
Geometry snapshot
| Spec | Arc Vehicle Vector | NIU RQi Sport |
|---|---|---|
| Seat height | 825 mm | 825 mm |
| Wheelbase | 1,450 mm | 1,455 mm |
| Wet weight | 240 kg | 186 kg |
| Displacement | - | - |
Posture metrics
Knee angle
- Arc Vehicle Vector
- Sport (58.1 deg)
- NIU RQi Sport
- Sport (58.1 deg)
Hip angle
- Arc Vehicle Vector
- Neutral (94.0 deg)
- NIU RQi Sport
- Neutral (93.9 deg)
Elbow angle
- Arc Vehicle Vector
- Relaxed (143.3 deg)
- NIU RQi Sport
- Relaxed (143.3 deg)
Torso lean
- Arc Vehicle Vector
- Neutral (12.0 deg)
- NIU RQi Sport
- Neutral (12.1 deg)