motocross / default rider 183 cm
KTM 125 SX vs KTM 300 SX ergonomics
KTM 125 SX and KTM 300 SX 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 125 SX
All contacts reached
KTM 300 SX
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 125 SX lists a 958 mm seat; the KTM 300 SX lists 958 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 125 SX | KTM 300 SX |
|---|---|---|
| Seat height | 958 mm | 958 mm |
| Wheelbase | 1,493 mm | 1,493 mm |
| Wet weight | - | - |
| Displacement | 125 cc | 293 cc |
Posture metrics
Knee angle
- KTM 125 SX
- Sport (58.1 deg)
- KTM 300 SX
- Sport (58.1 deg)
Hip angle
- KTM 125 SX
- Neutral (93.1 deg)
- KTM 300 SX
- Neutral (93.1 deg)
Elbow angle
- KTM 125 SX
- Relaxed (143.3 deg)
- KTM 300 SX
- Relaxed (143.3 deg)
Torso lean
- KTM 125 SX
- Neutral (12.7 deg)
- KTM 300 SX
- Neutral (12.7 deg)