standard / default rider 183 cm
BSA Motorcycles Gold Star 650 vs Kawasaki ER-5 ergonomics
BSA Motorcycles Gold Star 650 and Kawasaki ER-5 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
BSA Motorcycles Gold Star 650
All contacts reached
Kawasaki ER-5
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 BSA Motorcycles Gold Star 650 lists a 780 mm seat; the Kawasaki ER-5 lists 780 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 | BSA Motorcycles Gold Star 650 | Kawasaki ER-5 |
|---|---|---|
| Seat height | 780 mm | 780 mm |
| Wheelbase | 1,425 mm | 1,430 mm |
| Wet weight | 213 kg | 196 kg |
| Displacement | 652 cc | 498 cc |
Posture metrics
Knee angle
- BSA Motorcycles Gold Star 650
- Sport (58.0 deg)
- Kawasaki ER-5
- Sport (58.0 deg)
Hip angle
- BSA Motorcycles Gold Star 650
- Neutral (94.6 deg)
- Kawasaki ER-5
- Neutral (94.4 deg)
Elbow angle
- BSA Motorcycles Gold Star 650
- Relaxed (143.3 deg)
- Kawasaki ER-5
- Relaxed (143.3 deg)
Torso lean
- BSA Motorcycles Gold Star 650
- Neutral (11.7 deg)
- Kawasaki ER-5
- Neutral (11.8 deg)