cruiser / default rider 183 cm
Harley-Davidson Fat Boy vs Honda Shadow Aero ergonomics
Harley-Davidson Fat Boy and Honda Shadow Aero 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
Harley-Davidson Fat Boy
All contacts reached
Honda Shadow Aero
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 Harley-Davidson Fat Boy lists a 658 mm seat; the Honda Shadow Aero lists 660 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 | Harley-Davidson Fat Boy | Honda Shadow Aero |
|---|---|---|
| Seat height | 658 mm | 660 mm |
| Wheelbase | 1,651 mm | 1,640 mm |
| Wet weight | 315 kg | 251 kg |
| Displacement | 1,923 cc | 745 cc |
Posture metrics
Knee angle
- Harley-Davidson Fat Boy
- Open (121.1 deg)
- Honda Shadow Aero
- Open (119.8 deg)
Hip angle
- Harley-Davidson Fat Boy
- Sport (80.1 deg)
- Honda Shadow Aero
- Sport (79.9 deg)
Elbow angle
- Harley-Davidson Fat Boy
- Relaxed (143.3 deg)
- Honda Shadow Aero
- Relaxed (143.3 deg)
Torso lean
- Harley-Davidson Fat Boy
- Neutral (10.3 deg)
- Honda Shadow Aero
- Neutral (10.0 deg)