naked / default rider 183 cm
Triumph Street Triple R vs Yamaha MT-09 Y-AMT ergonomics
Yamaha MT-09 Y-AMT has the higher modeled posture score (95 vs 91) for the 183 cm default rider compared with Triumph Street Triple R. Treat this as a planning estimate, not a comfort or purchase verdict; compare the source confidence and confirm both bikes in person.
Modeled fit comparison
Triumph Street Triple R
All contacts reached
Yamaha MT-09 Y-AMT
All contacts reached
Yamaha MT-09 Y-AMT scores higher for the 183 cm default rider in this model. 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 Triumph Street Triple R lists a 826 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 | Triumph Street Triple R | Yamaha MT-09 Y-AMT |
|---|---|---|
| Seat height | 826 mm | 825 mm |
| Wheelbase | 1,402 mm | 1,430 mm |
| Wet weight | 189 kg | 196 kg |
| Displacement | 765 cc | 890 cc |
Posture metrics
Knee angle
- Triumph Street Triple R
- Sport (74.7 deg)
- Yamaha MT-09 Y-AMT
- Sport (61.6 deg)
Hip angle
- Triumph Street Triple R
- Open (129.0 deg)
- Yamaha MT-09 Y-AMT
- Neutral (92.0 deg)
Elbow angle
- Triumph Street Triple R
- Relaxed (143.3 deg)
- Yamaha MT-09 Y-AMT
- Relaxed (143.3 deg)
Torso lean
- Triumph Street Triple R
- Neutral (18.1 deg)
- Yamaha MT-09 Y-AMT
- Neutral (12.5 deg)