sport / default rider 183 cm
QJ Motor SRK 421 RR vs Suzuki GSX250R ergonomics
QJ Motor SRK 421 RR and Suzuki GSX250R land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
QJ Motor SRK 421 RR
All contacts reached
Suzuki GSX250R
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The QJ Motor SRK 421 RR has a 795 mm seat; the Suzuki GSX250R sits at 790 mm — a 5 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 80 cm for the QJ Motor SRK 421 RR and 79 cm for the Suzuki GSX250R.
That makes the Suzuki GSX250R the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the QJ Motor SRK 421 RR gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.
Geometry snapshot
| Spec | QJ Motor SRK 421 RR | Suzuki GSX250R |
|---|---|---|
| Seat height | 795 mm | 790 mm |
| Wheelbase | 1,385 mm | 1,430 mm |
| Wet weight | 185 kg | 181 kg |
| Displacement | 421 cc | 248 cc |
Posture metrics
Knee angle
- QJ Motor SRK 421 RR
- Sport (60.7 deg)
- Suzuki GSX250R
- Sport (60.7 deg)
Hip angle
- QJ Motor SRK 421 RR
- Neutral (99.6 deg)
- Suzuki GSX250R
- Neutral (99.4 deg)
Elbow angle
- QJ Motor SRK 421 RR
- Relaxed (143.3 deg)
- Suzuki GSX250R
- Relaxed (143.3 deg)
Torso lean
- QJ Motor SRK 421 RR
- Forward (25.3 deg)
- Suzuki GSX250R
- Forward (25.6 deg)