motocross / default rider 183 cm
KTM 85 SX vs Yamaha YZ85LW ergonomics
KTM 85 SX and Yamaha YZ85LW land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
KTM 85 SX
All contacts reached
Yamaha YZ85LW
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The KTM 85 SX has a 869 mm seat; the Yamaha YZ85LW sits at 884 mm — a 15 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 87 cm for the KTM 85 SX and 88 cm for the Yamaha YZ85LW.
That makes the KTM 85 SX the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Yamaha YZ85LW gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.
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)