standard / default rider 183 cm
Triumph Bonneville T140V vs Yamaha SR400 ergonomics
Triumph Bonneville T140V and Yamaha SR400 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
Triumph Bonneville T140V
All contacts reached
Yamaha SR400
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 Triumph Bonneville T140V lists a 790 mm seat; the Yamaha SR400 lists 790 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 Bonneville T140V | Yamaha SR400 |
|---|---|---|
| Seat height | 790 mm | 790 mm |
| Wheelbase | 1,422 mm | 1,410 mm |
| Wet weight | - | 174 kg |
| Displacement | 744 cc | 399 cc |
Posture metrics
Knee angle
- Triumph Bonneville T140V
- Sport (58.0 deg)
- Yamaha SR400
- Sport (58.0 deg)
Hip angle
- Triumph Bonneville T140V
- Neutral (94.6 deg)
- Yamaha SR400
- Neutral (94.8 deg)
Elbow angle
- Triumph Bonneville T140V
- Relaxed (143.3 deg)
- Yamaha SR400
- Relaxed (143.3 deg)
Torso lean
- Triumph Bonneville T140V
- Neutral (11.7 deg)
- Yamaha SR400
- Neutral (11.5 deg)