standard / default rider 183 cm
Honda CB750 Nighthawk vs Yamaha SR400 ergonomics
Honda CB750 Nighthawk and Yamaha SR400 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 CB750 Nighthawk
All contacts reached
Yamaha SR400
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 CB750 Nighthawk lists a 785 mm seat; the Yamaha SR400 lists 785 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 | Honda CB750 Nighthawk | Yamaha SR400 |
|---|---|---|
| Seat height | 785 mm | 785 mm |
| Wheelbase | 1,506 mm | 1,410 mm |
| Wet weight | - | 174 kg |
| Displacement | 747 cc | 399 cc |
Posture metrics
Knee angle
- Honda CB750 Nighthawk
- Sport (58.2 deg)
- Yamaha SR400
- Sport (58.0 deg)
Hip angle
- Honda CB750 Nighthawk
- Neutral (92.8 deg)
- Yamaha SR400
- Neutral (94.8 deg)
Elbow angle
- Honda CB750 Nighthawk
- Relaxed (143.3 deg)
- Yamaha SR400
- Relaxed (143.3 deg)
Torso lean
- Honda CB750 Nighthawk
- Neutral (12.9 deg)
- Yamaha SR400
- Neutral (11.5 deg)