cruiser / default rider 183 cm
Triumph Bonneville Speedmaster vs Yamaha XV1900 Midnight Star ergonomics
Triumph Bonneville Speedmaster and Yamaha XV1900 Midnight Star 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 Speedmaster
All contacts reached
Yamaha XV1900 Midnight Star
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 Speedmaster lists a 705 mm seat; the Yamaha XV1900 Midnight Star lists 706 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 Speedmaster | Yamaha XV1900 Midnight Star |
|---|---|---|
| Seat height | 705 mm | 706 mm |
| Wheelbase | 1,510 mm | 1,715 mm |
| Wet weight | 263 kg | 329 kg |
| Displacement | 1,200 cc | 1,854 cc |
Posture metrics
Knee angle
- Triumph Bonneville Speedmaster
- Open (109.1 deg)
- Yamaha XV1900 Midnight Star
- Open (127.4 deg)
Hip angle
- Triumph Bonneville Speedmaster
- Sport (78.5 deg)
- Yamaha XV1900 Midnight Star
- Sport (81.3 deg)
Elbow angle
- Triumph Bonneville Speedmaster
- Relaxed (143.3 deg)
- Yamaha XV1900 Midnight Star
- Relaxed (143.3 deg)
Torso lean
- Triumph Bonneville Speedmaster
- Neutral (8.1 deg)
- Yamaha XV1900 Midnight Star
- Neutral (11.2 deg)