supermoto / default rider 183 cm
Suzuki 250SB vs Yamaha XT660X ergonomics
Suzuki 250SB and Yamaha XT660X 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
Suzuki 250SB
All contacts reached
Yamaha XT660X
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 Suzuki 250SB lists a 865 mm seat; the Yamaha XT660X lists 865 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 | Suzuki 250SB | Yamaha XT660X |
|---|---|---|
| Seat height | 865 mm | 865 mm |
| Wheelbase | 1,435 mm | 1,490 mm |
| Wet weight | - | 185 kg |
| Displacement | 249 cc | 659 cc |
Posture metrics
Knee angle
- Suzuki 250SB
- Sport (58.0 deg)
- Yamaha XT660X
- Sport (58.1 deg)
Hip angle
- Suzuki 250SB
- Neutral (94.3 deg)
- Yamaha XT660X
- Neutral (93.2 deg)
Elbow angle
- Suzuki 250SB
- Relaxed (143.3 deg)
- Yamaha XT660X
- Relaxed (143.3 deg)
Torso lean
- Suzuki 250SB
- Neutral (11.8 deg)
- Yamaha XT660X
- Neutral (12.6 deg)