scrambler / default rider 183 cm
BSA Motorcycles Thunderbolt vs Norton Motorcycles P11 750 ergonomics
BSA Motorcycles Thunderbolt and Norton Motorcycles P11 750 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 Thunderbolt
All contacts reached
Norton Motorcycles P11 750
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 Thunderbolt lists a 815 mm seat; the Norton Motorcycles P11 750 lists 813 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 Thunderbolt | Norton Motorcycles P11 750 |
|---|---|---|
| Seat height | 815 mm | 813 mm |
| Wheelbase | 1,466 mm | 1,463 mm |
| Wet weight | 185 kg | 167 kg |
| Displacement | 334 cc | 745 cc |
Posture metrics
Knee angle
- BSA Motorcycles Thunderbolt
- Sport (58.1 deg)
- Norton Motorcycles P11 750
- Sport (58.1 deg)
Hip angle
- BSA Motorcycles Thunderbolt
- Neutral (93.6 deg)
- Norton Motorcycles P11 750
- Neutral (93.8 deg)
Elbow angle
- BSA Motorcycles Thunderbolt
- Relaxed (143.3 deg)
- Norton Motorcycles P11 750
- Relaxed (143.3 deg)
Torso lean
- BSA Motorcycles Thunderbolt
- Neutral (12.3 deg)
- Norton Motorcycles P11 750
- Neutral (12.2 deg)