sport / default rider 183 cm
CFMoto 500SR VOOM vs QJ Motor SRK 421 RR ergonomics
CFMoto 500SR VOOM and QJ Motor SRK 421 RR land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
CFMoto 500SR VOOM
90Comfortable
All contacts reached
QJ Motor SRK 421 RR
90Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The CFMoto 500SR VOOM has a 795 mm seat; the QJ Motor SRK 421 RR sits at 795 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 80 cm for the CFMoto 500SR VOOM and 80 cm for the QJ Motor SRK 421 RR.
Geometry snapshot
| Spec | CFMoto 500SR VOOM | QJ Motor SRK 421 RR |
|---|---|---|
| Seat height | 795 mm | 795 mm |
| Wheelbase | 1,394 mm | 1,385 mm |
| Wet weight | 194 kg | 185 kg |
| Displacement | 499 cc | 421 cc |
Posture metrics
Knee angle
- CFMoto 500SR VOOM
- Sport (60.7 deg)
- QJ Motor SRK 421 RR
- Sport (60.7 deg)
Hip angle
- CFMoto 500SR VOOM
- Neutral (99.6 deg)
- QJ Motor SRK 421 RR
- Neutral (99.6 deg)
Elbow angle
- CFMoto 500SR VOOM
- Relaxed (143.3 deg)
- QJ Motor SRK 421 RR
- Relaxed (143.3 deg)
Torso lean
- CFMoto 500SR VOOM
- Forward (25.4 deg)
- QJ Motor SRK 421 RR
- Forward (25.3 deg)