standard / default rider 183 cm
Honda CB400 Super Four vs Triumph Street Twin ergonomics
Honda CB400 Super Four and Triumph Street Twin 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
Honda CB400 Super Four
All contacts reached
Triumph Street Twin
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 Honda CB400 Super Four lists a 755 mm seat; the Triumph Street Twin lists 760 mm — a 5 mm difference. 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.
On seat height alone, the Honda CB400 Super Four has the easier modeled ground reach. Load your measurements into the simulator to compare the model, then verify both motorcycles in person.
Geometry snapshot
| Spec | Honda CB400 Super Four | Triumph Street Twin |
|---|---|---|
| Seat height | 755 mm | 760 mm |
| Wheelbase | 1,410 mm | 1,415 mm |
| Wet weight | 198 kg | 216 kg |
| Displacement | 399 cc | 900 cc |
Posture metrics
Knee angle
- Honda CB400 Super Four
- Sport (58.0 deg)
- Triumph Street Twin
- Sport (58.0 deg)
Hip angle
- Honda CB400 Super Four
- Neutral (94.8 deg)
- Triumph Street Twin
- Neutral (94.9 deg)
Elbow angle
- Honda CB400 Super Four
- Relaxed (143.3 deg)
- Triumph Street Twin
- Relaxed (143.3 deg)
Torso lean
- Honda CB400 Super Four
- Neutral (11.5 deg)
- Triumph Street Twin
- Neutral (11.5 deg)