moped / default rider 183 cm
SYM Symphony ST 125 vs Tomos Flexer 25 SM ergonomics
SYM Symphony ST 125 and Tomos Flexer 25 SM 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
SYM Symphony ST 125
All contacts reached
Tomos Flexer 25 SM
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 SYM Symphony ST 125 lists a 800 mm seat; the Tomos Flexer 25 SM 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 | SYM Symphony ST 125 | Tomos Flexer 25 SM |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,385 mm | 1,115 mm |
| Wet weight | 132 kg | - |
| Displacement | 125 cc | 49 cc |
Posture metrics
Knee angle
- SYM Symphony ST 125
- Sport (57.9 deg)
- Tomos Flexer 25 SM
- Sport (57.4 deg)
Hip angle
- SYM Symphony ST 125
- Neutral (95.4 deg)
- Tomos Flexer 25 SM
- Neutral (101.7 deg)
Elbow angle
- SYM Symphony ST 125
- Relaxed (143.3 deg)
- Tomos Flexer 25 SM
- Relaxed (143.3 deg)
Torso lean
- SYM Symphony ST 125
- Neutral (11.1 deg)
- Tomos Flexer 25 SM
- Neutral (6.9 deg)