dual-sport / default rider 183 cm
Aprilia ETX 125 vs BMW G 650 Xchallenge ergonomics
Aprilia ETX 125 and BMW G 650 Xchallenge 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 ETX 125
All contacts reached
BMW G 650 Xchallenge
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 ETX 125 lists a 914 mm seat; the BMW G 650 Xchallenge lists 909 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 BMW G 650 Xchallenge 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 | Aprilia ETX 125 | BMW G 650 Xchallenge |
|---|---|---|
| Seat height | 914 mm | 909 mm |
| Wheelbase | 1,476 mm | 1,501 mm |
| Wet weight | 113 kg | - |
| Displacement | 124 cc | 652 cc |
Posture metrics
Knee angle
- Aprilia ETX 125
- Sport (67.5 deg)
- BMW G 650 Xchallenge
- Sport (67.6 deg)
Hip angle
- Aprilia ETX 125
- Neutral (107.2 deg)
- BMW G 650 Xchallenge
- Neutral (106.7 deg)
Elbow angle
- Aprilia ETX 125
- Relaxed (143.3 deg)
- BMW G 650 Xchallenge
- Relaxed (143.3 deg)
Torso lean
- Aprilia ETX 125
- Neutral (6.9 deg)
- BMW G 650 Xchallenge
- Neutral (7.2 deg)