sport / default rider 183 cm
Aprilia RS 125 vs Aprilia RS 660 Factory ergonomics
Aprilia RS 125 and Aprilia RS 660 Factory 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
Aprilia RS 125
All contacts reached
Aprilia RS 660 Factory
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 Aprilia RS 125 lists a 820 mm seat; the Aprilia RS 660 Factory lists 820 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 | Aprilia RS 125 | Aprilia RS 660 Factory |
|---|---|---|
| Seat height | 820 mm | 820 mm |
| Wheelbase | 1,350 mm | 1,370 mm |
| Wet weight | 144 kg | 183 kg |
| Displacement | 124 cc | 659 cc |
Posture metrics
Knee angle
- Aprilia RS 125
- Sport (60.7 deg)
- Aprilia RS 660 Factory
- Sport (60.7 deg)
Hip angle
- Aprilia RS 125
- Neutral (99.6 deg)
- Aprilia RS 660 Factory
- Neutral (99.5 deg)
Elbow angle
- Aprilia RS 125
- Relaxed (143.3 deg)
- Aprilia RS 660 Factory
- Relaxed (143.3 deg)
Torso lean
- Aprilia RS 125
- Forward (25.2 deg)
- Aprilia RS 660 Factory
- Forward (25.3 deg)