sport / default rider 183 cm
Aprilia RS125 vs Yamaha YZF600R ergonomics
Aprilia RS125 and Yamaha YZF600R 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 RS125
All contacts reached
Yamaha YZF600R
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 RS125 lists a 805 mm seat; the Yamaha YZF600R lists 805 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 RS125 | Yamaha YZF600R |
|---|---|---|
| Seat height | 805 mm | 805 mm |
| Wheelbase | 1,345 mm | 1,415 mm |
| Wet weight | 137 kg | - |
| Displacement | 125 cc | 599 cc |
Posture metrics
Knee angle
- Aprilia RS125
- Sport (60.7 deg)
- Yamaha YZF600R
- Sport (60.7 deg)
Hip angle
- Aprilia RS125
- Neutral (99.6 deg)
- Yamaha YZF600R
- Neutral (99.5 deg)
Elbow angle
- Aprilia RS125
- Relaxed (143.3 deg)
- Yamaha YZF600R
- Relaxed (143.3 deg)
Torso lean
- Aprilia RS125
- Forward (25.2 deg)
- Yamaha YZF600R
- Forward (25.5 deg)