naked / default rider 183 cm
Yamaha MT-09 vs Yamaha MT-09 Y-AMT ergonomics
Yamaha MT-09 and Yamaha MT-09 Y-AMT 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
Yamaha MT-09
All contacts reached
Yamaha MT-09 Y-AMT
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 Yamaha MT-09 lists a 825 mm seat; the Yamaha MT-09 Y-AMT lists 825 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 | Yamaha MT-09 | Yamaha MT-09 Y-AMT |
|---|---|---|
| Seat height | 825 mm | 825 mm |
| Wheelbase | 1,430 mm | 1,430 mm |
| Wet weight | 193 kg | 196 kg |
| Displacement | 890 cc | 890 cc |
Posture metrics
Knee angle
- Yamaha MT-09
- Sport (61.6 deg)
- Yamaha MT-09 Y-AMT
- Sport (61.6 deg)
Hip angle
- Yamaha MT-09
- Neutral (92.0 deg)
- Yamaha MT-09 Y-AMT
- Neutral (92.0 deg)
Elbow angle
- Yamaha MT-09
- Relaxed (143.3 deg)
- Yamaha MT-09 Y-AMT
- Relaxed (143.3 deg)
Torso lean
- Yamaha MT-09
- Neutral (12.5 deg)
- Yamaha MT-09 Y-AMT
- Neutral (12.5 deg)