sport / default rider 183 cm
KTM RC 125 vs KTM RC 390 ergonomics
KTM RC 125 and KTM RC 390 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
KTM RC 125
All contacts reached
KTM RC 390
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 KTM RC 125 lists a 824 mm seat; the KTM RC 390 lists 824 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 | KTM RC 125 | KTM RC 390 |
|---|---|---|
| Seat height | 824 mm | 824 mm |
| Wheelbase | 1,343 mm | 1,355 mm |
| Wet weight | 156 kg | - |
| Displacement | 125 cc | 373 cc |
Posture metrics
Knee angle
- KTM RC 125
- Sport (60.7 deg)
- KTM RC 390
- Sport (60.7 deg)
Hip angle
- KTM RC 125
- Neutral (99.7 deg)
- KTM RC 390
- Neutral (99.6 deg)
Elbow angle
- KTM RC 125
- Relaxed (143.3 deg)
- KTM RC 390
- Relaxed (143.3 deg)
Torso lean
- KTM RC 125
- Forward (25.1 deg)
- KTM RC 390
- Forward (25.2 deg)