dual-sport / default rider 183 cm
Yamaha XT125R vs Yamaha XT550 ergonomics
Yamaha XT550 has the higher modeled posture score (95 vs 92) for the 183 cm default rider compared with Yamaha XT125R. 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
Yamaha XT125R
All contacts reached
Yamaha XT550
All contacts reached
Yamaha XT550 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 Yamaha XT125R lists a 860 mm seat; the Yamaha XT550 lists 860 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 XT125R | Yamaha XT550 |
|---|---|---|
| Seat height | 860 mm | 860 mm |
| Wheelbase | 1,335 mm | 1,400 mm |
| Wet weight | - | 145 kg |
| Displacement | 124 cc | 558 cc |
Posture metrics
Knee angle
- Yamaha XT125R
- Sport (67.3 deg)
- Yamaha XT550
- Sport (67.4 deg)
Hip angle
- Yamaha XT125R
- Neutral (110.2 deg)
- Yamaha XT550
- Neutral (108.7 deg)
Elbow angle
- Yamaha XT125R
- Relaxed (143.3 deg)
- Yamaha XT550
- Relaxed (143.3 deg)
Torso lean
- Yamaha XT125R
- Upright (4.7 deg)
- Yamaha XT550
- Neutral (5.8 deg)