| General information | 
  
    | Model name | Harley-Davidson SX 250 | 
    | Year | 1977 | 
    | Category | Cross / motocross | 
    | Rating | 2.9   Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. | 
    
        | Engine and transmission | 
  
    | Displacement | 243.0 ccm (14.83 cubic inches) | 
    | Engine type | Single cylinder, two-stroke | 
    | Power | 20.0 HP (14.6  kW)) @ 7000 RPM | 
    | Top speed | 115.0 km/h (71.5 mph) | 
    | Compression | 10.3:1 | 
    | Bore x stroke | 72.0 x 59.6 mm (2.8 x 2.3 inches) | 
    | Fuel control | Port control | 
    | Cooling system | Air | 
    | Gearbox | 5-speed | 
    | Transmission type | Chain  (final drive) | 
    
        | Chassis, suspension, brakes and wheels | 
  
    | Front tire | 3.25-19 | 
    | Rear tire | 4.00-18 | 
    | Front brakes | Expanding brake | 
    | Rear brakes | Expanding brake | 
    
        | Physical measures and capacities | 
  
    | Weight incl. oil, gas, etc | 125.0 kg (275.6 pounds) | 
    | Fuel capacity | 10.50 litres (2.77 US gallons) | 
    
        | Other specifications | 
  | Update specs | Report missing specs or required updates. | 
    
        | Further information | 
  | Insurance costs | Compare US insurance quotes from the nation's top providers. | 
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. | 
| Ask questions | Join the 77 Harley-Davidson SX 250 discussion group or the general Harley-Davidson discussion group. | 
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