sport / default rider 183 cm
QJ Motor SRK 421 RR vs Suzuki GSX250R ergonomics
QJ Motor SRK 421 RR and Suzuki GSX250R 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
QJ Motor SRK 421 RR
All contacts reached
Suzuki GSX250R
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 QJ Motor SRK 421 RR lists a 795 mm seat; the Suzuki GSX250R lists 790 mm — a 5 mm difference. 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.
On seat height alone, the Suzuki GSX250R has the easier modeled ground reach. Load your measurements into the simulator to compare the model, then verify both motorcycles in person.
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)