cafe-racer / default rider 183 cm
Sinnis Bomber 125 vs Yamaha SRX400 ergonomics
Sinnis Bomber 125 and Yamaha SRX400 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Sinnis Bomber 125
95Comfortable
All contacts reached
Yamaha SRX400
95Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Sinnis Bomber 125 has a 760 mm seat; the Yamaha SRX400 sits at 760 mm, within a few millimetres of each other. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 76 cm for the Sinnis Bomber 125 and 76 cm for the Yamaha SRX400.
Geometry snapshot
| Spec | Sinnis Bomber 125 | Yamaha SRX400 |
|---|---|---|
| Seat height | 760 mm | 760 mm |
| Wheelbase | 1,360 mm | 1,390 mm |
| Wet weight | 124 kg | 168 kg |
| Displacement | 125 cc | 399 cc |
Posture metrics
Knee angle
- Sinnis Bomber 125
- Sport (57.9 deg)
- Yamaha SRX400
- Sport (57.9 deg)
Hip angle
- Sinnis Bomber 125
- Neutral (95.9 deg)
- Yamaha SRX400
- Neutral (95.4 deg)
Elbow angle
- Sinnis Bomber 125
- Relaxed (143.3 deg)
- Yamaha SRX400
- Relaxed (143.3 deg)
Torso lean
- Sinnis Bomber 125
- Neutral (10.7 deg)
- Yamaha SRX400
- Neutral (11.1 deg)