cruiser / default rider 183 cm
QJ Motor SRV 550 vs Zontes 310 V ergonomics
QJ Motor SRV 550 and Zontes 310 V 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 SRV 550
All contacts reached
Zontes 310 V
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 SRV 550 lists a 785 mm seat; the Zontes 310 V lists 807 mm — a 22 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 QJ Motor SRV 550 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 SRV 550 | Zontes 310 V |
|---|---|---|
| Seat height | 785 mm | 807 mm |
| Wheelbase | 1,440 mm | 1,390 mm |
| Wet weight | 206 kg | 159 kg |
| Displacement | 554 cc | 312 cc |
Posture metrics
Knee angle
- QJ Motor SRV 550
- Neutral (103.8 deg)
- Zontes 310 V
- Neutral (100.3 deg)
Hip angle
- QJ Motor SRV 550
- Sport (78.2 deg)
- Zontes 310 V
- Sport (78.2 deg)
Elbow angle
- QJ Motor SRV 550
- Relaxed (143.3 deg)
- Zontes 310 V
- Relaxed (143.3 deg)
Torso lean
- QJ Motor SRV 550
- Neutral (6.9 deg)
- Zontes 310 V
- Neutral (6.0 deg)