cruiser / default rider 183 cm
Moto Guzzi V9 Bobber vs QJ Motor SRV 550 ergonomics
QJ Motor SRV 550 has the higher modeled posture score (95 vs 92) for the 183 cm default rider compared with Moto Guzzi V9 Bobber. Treat this as a planning estimate, not a comfort or purchase verdict; compare the source confidence and confirm both bikes in person.
Modeled fit comparison
Moto Guzzi V9 Bobber
All contacts reached
QJ Motor SRV 550
All contacts reached
QJ Motor SRV 550 scores higher for the 183 cm default rider in this model. 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 Moto Guzzi V9 Bobber lists a 785 mm seat; the QJ Motor SRV 550 lists 785 mm, within a few millimetres of each other. 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.
Geometry snapshot
| Spec | Moto Guzzi V9 Bobber | QJ Motor SRV 550 |
|---|---|---|
| Seat height | 785 mm | 785 mm |
| Wheelbase | 1,465 mm | 1,440 mm |
| Wet weight | 210 kg | 206 kg |
| Displacement | 853 cc | 554 cc |
Posture metrics
Knee angle
- Moto Guzzi V9 Bobber
- Open (105.8 deg)
- QJ Motor SRV 550
- Neutral (103.8 deg)
Hip angle
- Moto Guzzi V9 Bobber
- Sport (78.3 deg)
- QJ Motor SRV 550
- Sport (78.2 deg)
Elbow angle
- Moto Guzzi V9 Bobber
- Relaxed (143.3 deg)
- QJ Motor SRV 550
- Relaxed (143.3 deg)
Torso lean
- Moto Guzzi V9 Bobber
- Neutral (7.3 deg)
- QJ Motor SRV 550
- Neutral (6.9 deg)