scrambler / default rider 183 cm
BSA Motorcycles A65 Firebird Scrambler vs Triumph Scrambler 400 X ergonomics
BSA Motorcycles A65 Firebird Scrambler and Triumph Scrambler 400 X 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 A65 Firebird Scrambler
All contacts reached
Triumph Scrambler 400 X
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 A65 Firebird Scrambler lists a 838 mm seat; the Triumph Scrambler 400 X 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 | BSA Motorcycles A65 Firebird Scrambler | Triumph Scrambler 400 X |
|---|---|---|
| Seat height | 838 mm | 835 mm |
| Wheelbase | 1,372 mm | 1,418 mm |
| Wet weight | 184 kg | 179 kg |
| Displacement | 654 cc | 398 cc |
Posture metrics
Knee angle
- BSA Motorcycles A65 Firebird Scrambler
- Sport (57.9 deg)
- Triumph Scrambler 400 X
- Sport (58.0 deg)
Hip angle
- BSA Motorcycles A65 Firebird Scrambler
- Neutral (95.7 deg)
- Triumph Scrambler 400 X
- Neutral (94.7 deg)
Elbow angle
- BSA Motorcycles A65 Firebird Scrambler
- Relaxed (143.3 deg)
- Triumph Scrambler 400 X
- Relaxed (143.3 deg)
Torso lean
- BSA Motorcycles A65 Firebird Scrambler
- Neutral (10.9 deg)
- Triumph Scrambler 400 X
- Neutral (11.6 deg)