naked / default rider 183 cm
Honda CB125R vs Yamaha FZ1 ergonomics
Honda CB125R and Yamaha FZ1 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 CB125R
All contacts reached
Yamaha FZ1
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 CB125R lists a 816 mm seat; the Yamaha FZ1 lists 815 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 CB125R | Yamaha FZ1 |
|---|---|---|
| Seat height | 816 mm | 815 mm |
| Wheelbase | 1,345 mm | 1,460 mm |
| Wet weight | 130 kg | 220 kg |
| Displacement | 124 cc | 998 cc |
Posture metrics
Knee angle
- Honda CB125R
- Sport (61.3 deg)
- Yamaha FZ1
- Sport (61.8 deg)
Hip angle
- Honda CB125R
- Neutral (94.2 deg)
- Yamaha FZ1
- Neutral (91.2 deg)
Elbow angle
- Honda CB125R
- Relaxed (143.3 deg)
- Yamaha FZ1
- Relaxed (143.3 deg)
Torso lean
- Honda CB125R
- Neutral (11.1 deg)
- Yamaha FZ1
- Neutral (13.1 deg)