cafe-racer / default rider 183 cm
Norton Motorcycles V4CR vs Yamaha XSR900 GP ergonomics
Norton Motorcycles V4CR and Yamaha XSR900 GP 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
Norton Motorcycles V4CR
All contacts reached
Yamaha XSR900 GP
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 Norton Motorcycles V4CR lists a 836 mm seat; the Yamaha XSR900 GP lists 835 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 | Norton Motorcycles V4CR | Yamaha XSR900 GP |
|---|---|---|
| Seat height | 836 mm | 835 mm |
| Wheelbase | 1,435 mm | 1,500 mm |
| Wet weight | 204 kg | 200 kg |
| Displacement | 1,200 cc | 890 cc |
Posture metrics
Knee angle
- Norton Motorcycles V4CR
- Sport (58.0 deg)
- Yamaha XSR900 GP
- Sport (58.2 deg)
Hip angle
- Norton Motorcycles V4CR
- Neutral (94.3 deg)
- Yamaha XSR900 GP
- Neutral (92.9 deg)
Elbow angle
- Norton Motorcycles V4CR
- Relaxed (143.3 deg)
- Yamaha XSR900 GP
- Relaxed (143.3 deg)
Torso lean
- Norton Motorcycles V4CR
- Neutral (11.8 deg)
- Yamaha XSR900 GP
- Neutral (12.8 deg)