| Attribute | Tomos 125 SE × | Tomos BT 1990 × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 1990 |
| Make | Tomos | Tomos |
| Model | Tomos 125 SE | Tomos BT |
| Category | Enduro / offroad | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | - | Carburettor |
| Displacement (cm³) | 125 | 50 |
| Power (kw) | 7.8 | 4.4 |
| Cooling system | Air | Air |
| Transmission type,final drive | - | Chain |
| Bore (mm) | - | 38 |
| Stroke (mm) | - | 0 |
| Gearbox | 6-speed | 5-speed |
| Lubrication system | 2% fuel mix | - |
| Chassis | ||
| Front brakes | Single disc | - |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Diameter (mm) | 220 | 220 |
| Frame type | Monotube | - |
| Front tyre | 90/90-21 | - |
| Rear tyre | 120/80-18 | - |
| Other | ||
| Starter | Electric & kick | Kick |
| Dimensions | ||
| Dry weight (kg) | 107 | 70 |
| Power/weight ratio | 0.0729 | 0.0629 |
| Performance | ||
| Top speed (km/h) | 95 | 90 |
| Reserve fuel capacity (l) | 0.5 | - |
| Fuel capacity (l) | - | 9 |