standard / default rider 183 cm
Yamaha RD400 vs Yamaha XS650 ergonomics
Yamaha RD400 and Yamaha XS650 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Yamaha RD400
95Comfortable
All contacts reached
Yamaha XS650
95Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Geometry snapshot
| Spec | Yamaha RD400 | Yamaha XS650 |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,334 mm | 1,435 mm |
| Wet weight | 165 kg | - |
| Displacement | 399 cc | 654 cc |
Posture metrics
Knee angle
- Yamaha RD400
- Sport (57.8 deg)
- Yamaha XS650
- Sport (58.0 deg)
Hip angle
- Yamaha RD400
- Neutral (96.5 deg)
- Yamaha XS650
- Neutral (94.3 deg)
Elbow angle
- Yamaha RD400
- Relaxed (143.3 deg)
- Yamaha XS650
- Relaxed (143.3 deg)
Torso lean
- Yamaha RD400
- Neutral (10.3 deg)
- Yamaha XS650
- Neutral (11.8 deg)