| Attribute | Yamaha XT 250 1981 × | Harley-Davidson SX 250 1976 × |
|---|---|---|
| General | ||
| Production from (year) | 1981 | 1976 |
| Make | Yamaha | Harley-Davidson |
| Model | Yamaha XT 250 | Harley-Davidson SX 250 |
| Category | Enduro / offroad | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Valves per cylinder | 2 | - |
| Displacement (cm³) | 249 | 243 |
| Power (kw) | 16.1 | 14.6 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 75 | 72 |
| Stroke (mm) | 56.5 | 59.6 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Overhead Cams (OHC) | Port control |
| Compression | 9.2:1 | 10.3:1 |
| Chassis | ||
| Front brakes | Expanding brake | Expanding brake |
| Rear brakes | Expanding brake | Expanding brake |
| Front tyre | 3.00-21 | 3.25-19 |
| Rear tyre | 4.60-17 | 4.00-18 |
| Dimensions | ||
| Kerb weight (kg) | 124 | 125 |
| Performance | ||
| Top speed (km/h) | 121 | 115 |
| Fuel capacity (l) | 8 | 10.5 |