motocross / default rider 183 cm
KTM 85 SX vs Yamaha YZ85LW ergonomics
KTM 85 SX and Yamaha YZ85LW 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 85 SX
All contacts reached
Yamaha YZ85LW
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 85 SX lists a 869 mm seat; the Yamaha YZ85LW lists 884 mm — a 15 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 KTM 85 SX 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 | KTM 85 SX | Yamaha YZ85LW |
|---|---|---|
| Seat height | 869 mm | 884 mm |
| Wheelbase | 1,280 mm | 1,285 mm |
| Wet weight | - | 75 kg |
| Displacement | 85 cc | 85 cc |
Posture metrics
Knee angle
- KTM 85 SX
- Sport (57.7 deg)
- Yamaha YZ85LW
- Sport (57.7 deg)
Hip angle
- KTM 85 SX
- Neutral (97.7 deg)
- Yamaha YZ85LW
- Neutral (97.6 deg)
Elbow angle
- KTM 85 SX
- Relaxed (143.3 deg)
- Yamaha YZ85LW
- Relaxed (143.3 deg)
Torso lean
- KTM 85 SX
- Neutral (9.5 deg)
- Yamaha YZ85LW
- Neutral (9.6 deg)