standard / default rider 183 cm
Moto Guzzi Griso 1200 8V vs Yamaha RD400 ergonomics
Moto Guzzi Griso 1200 8V and Yamaha RD400 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
Moto Guzzi Griso 1200 8V
All contacts reached
Yamaha RD400
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 Moto Guzzi Griso 1200 8V lists a 800 mm seat; the Yamaha RD400 lists 800 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 | Moto Guzzi Griso 1200 8V | Yamaha RD400 |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,554 mm | 1,334 mm |
| Wet weight | - | 165 kg |
| Displacement | 1,151 cc | 399 cc |
Posture metrics
Knee angle
- Moto Guzzi Griso 1200 8V
- Sport (58.3 deg)
- Yamaha RD400
- Sport (57.8 deg)
Hip angle
- Moto Guzzi Griso 1200 8V
- Neutral (91.8 deg)
- Yamaha RD400
- Neutral (96.5 deg)
Elbow angle
- Moto Guzzi Griso 1200 8V
- Relaxed (143.3 deg)
- Yamaha RD400
- Relaxed (143.3 deg)
Torso lean
- Moto Guzzi Griso 1200 8V
- Neutral (13.5 deg)
- Yamaha RD400
- Neutral (10.3 deg)