| General information | 
  
    | Model name | Moto Morini 500 S | 
    | Year | 1981 | 
    | Category | Classic | 
    | Rating | 3.3   See the detailed rating of design and look, engine performance, reliability, fun-factor, etc. Compare with any other bike. | 
    
        | Engine and transmission | 
  
    | Displacement | 478.0 ccm (29.17 cubic inches) | 
    | Engine type | V2, four-stroke | 
    | Power | 42.0 HP (30.7  kW)) @ 7500 RPM | 
    | Top speed | 170.0 km/h (105.6 mph) | 
    | Compression | 11.2:1 | 
    | Bore x stroke | 69.0 x 64.0 mm (2.7 x 2.5 inches) | 
    | Valves per cylinder | 2 | 
    | Fuel control | Overhead Valves (OHV) | 
    | Cooling system | Air | 
    | Gearbox | 5-speed | 
    | Transmission type | Chain  (final drive) | 
    
        | Chassis, suspension, brakes and wheels | 
  
    | Front tire | 100/90-18 | 
    | Rear tire | 4.00-18 | 
    | Front brakes | Dual disc | 
    | Rear brakes | Single disc | 
    
        | Physical measures and capacities | 
  
    | Weight incl. oil, gas, etc | 184.0 kg (405.7 pounds) | 
    | Fuel capacity | 15.00 litres (3.96 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 81 Moto Morini 500 S discussion group or the general Moto Morini discussion group. | 
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