| Attribute | Bultaco Metralla 250 1973 × | Yamaha DT 250 1974 × |
|---|---|---|
| General | ||
| Production from (year) | 1973 | 1974 |
| Make | Bultaco | Yamaha |
| Model | Bultaco Metralla 250 | Yamaha DT 250 |
| Category | Sport touring | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Displacement (cm³) | 244 | 246 |
| Power (kw) | 20.1 | 14.6 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 72 | 70 |
| Stroke (mm) | 60 | 64 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Port control | Membrane |
| Compression | 9.0:1 | 6.8:1 |
| Chassis | ||
| Front brakes | Expanding brake | Expanding brake |
| Rear brakes | Expanding brake | Expanding brake |
| Front tyre | 2.75-18 | 3.00-21 |
| Rear tyre | 3.00-18 | 4.00-18 |
| Dimensions | ||
| Kerb weight (kg) | 112 | 129 |
| Performance | ||
| Top speed (km/h) | 150 | 137 |
| Fuel capacity (l) | 14 | 9 |