supermoto / default rider 183 cm
Fantic XMF 125 Competition vs MZ Mastiff 660 ergonomics
Fantic XMF 125 Competition and MZ Mastiff 660 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Fantic XMF 125 Competition
All contacts reached
MZ Mastiff 660
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Fantic XMF 125 Competition has a 820 mm seat; the MZ Mastiff 660 sits at 831 mm — a 11 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 82 cm for the Fantic XMF 125 Competition and 83 cm for the MZ Mastiff 660.
That makes the Fantic XMF 125 Competition the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the MZ Mastiff 660 gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.
Geometry snapshot
| Spec | Fantic XMF 125 Competition | MZ Mastiff 660 |
|---|---|---|
| Seat height | 820 mm | 831 mm |
| Wheelbase | 1,425 mm | 1,466 mm |
| Wet weight | - | 167 kg |
| Displacement | 125 cc | 660 cc |
Posture metrics
Knee angle
- Fantic XMF 125 Competition
- Sport (58.0 deg)
- MZ Mastiff 660
- Sport (58.1 deg)
Hip angle
- Fantic XMF 125 Competition
- Neutral (94.6 deg)
- MZ Mastiff 660
- Neutral (93.6 deg)
Elbow angle
- Fantic XMF 125 Competition
- Relaxed (143.3 deg)
- MZ Mastiff 660
- Relaxed (143.3 deg)
Torso lean
- Fantic XMF 125 Competition
- Neutral (11.7 deg)
- MZ Mastiff 660
- Neutral (12.3 deg)