moped / default rider 183 cm
Yamaha Sight 115 CW vs Yamaha Sirius FI ergonomics
Yamaha Sight 115 CW and Yamaha Sirius FI 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
Yamaha Sight 115 CW
All contacts reached
Yamaha Sirius FI
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 Yamaha Sight 115 CW lists a 775 mm seat; the Yamaha Sirius FI lists 775 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 | Yamaha Sight 115 CW | Yamaha Sirius FI |
|---|---|---|
| Seat height | 775 mm | 775 mm |
| Wheelbase | 1,235 mm | 1,235 mm |
| Wet weight | 96 kg | 98 kg |
| Displacement | 114 cc | 113 cc |
Posture metrics
Knee angle
- Yamaha Sight 115 CW
- Sport (57.6 deg)
- Yamaha Sirius FI
- Sport (57.6 deg)
Hip angle
- Yamaha Sight 115 CW
- Neutral (98.8 deg)
- Yamaha Sirius FI
- Neutral (98.8 deg)
Elbow angle
- Yamaha Sight 115 CW
- Relaxed (143.3 deg)
- Yamaha Sirius FI
- Relaxed (143.3 deg)
Torso lean
- Yamaha Sight 115 CW
- Neutral (8.8 deg)
- Yamaha Sirius FI
- Neutral (8.8 deg)