motocross / default rider 183 cm
GasGas MC 85 19/16 vs Yamaha YZ85LW ergonomics
GasGas MC 85 19/16 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
GasGas MC 85 19/16
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 GasGas MC 85 19/16 lists a 871 mm seat; the Yamaha YZ85LW lists 884 mm — a 13 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 GasGas MC 85 19/16 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 | GasGas MC 85 19/16 | Yamaha YZ85LW |
|---|---|---|
| Seat height | 871 mm | 884 mm |
| Wheelbase | 1,282 mm | 1,285 mm |
| Wet weight | - | 75 kg |
| Displacement | 85 cc | 85 cc |
Posture metrics
Knee angle
- GasGas MC 85 19/16
- Sport (57.7 deg)
- Yamaha YZ85LW
- Sport (57.7 deg)
Hip angle
- GasGas MC 85 19/16
- Neutral (97.7 deg)
- Yamaha YZ85LW
- Neutral (97.6 deg)
Elbow angle
- GasGas MC 85 19/16
- Relaxed (143.3 deg)
- Yamaha YZ85LW
- Relaxed (143.3 deg)
Torso lean
- GasGas MC 85 19/16
- Neutral (9.5 deg)
- Yamaha YZ85LW
- Neutral (9.6 deg)