2009 MBK Stunt Naked
 
          
      General motorcycle information
Engine and transmission
Displacement
        
                      3.04 cubic inches            (49.9 ccm)
                  
      Engine type
        
          Single cylinder, 2 stroke        
      Power
      
                  3.6 horsepowers          (2.7 kiloWatts)
           at 6800 RPM              
    Torque
      
                              2.95 pound-foot/lbf-ft            (4.00 Nm / 0.41 kgf-m)
                     at 5000 RPM              
    Compression
      
                  11.2:1
              
    Bore x stroke
      
                  2.44 x 2.39 inches (40.0 x 39.2 mm)              
    Fuel system
      
                  -
              
    Cooling system
      
                  Air              
    Gearbox
      
                  Automatic              
    Transmission type, final drive
      
                  Belt              
    Starter
      
                  Electric and kick              
    Fuel consumption
      
                  -
              
    Top speed
      
                  -
              
    Chassis, suspension, brakes and wheels
Front suspension travel
        
          4.88 inches (80.0 mm)        
      Rear suspension travel
        
          3.66 inches (60.0 mm)        
      Front tyre
        
                      120/80-12                  
      Rear tyre
        
                      130/90-10                  
      Front brake
      
                                      Single disc                                            
    Front brakes diameter
        
          11.59 inches (190.0 mm)        
      Rear brake
      
                                                          Expanding brake (drum)                        
    Rear brakes diameter
        
          6.71 inches (110.0 mm)        
      Physical measures and capacities
Dry weight
      
                  588.6 pounds (267.0 kg)              
    Wet weight
        
          180.8 pounds (82.0 kg)        
      Seat height
      
                  48.0 inches (787 mm)              
    Wheelbase
      
                  73.3 inches (1202 mm)              
    Overall length
        
          108.9 inches (1785 mm)        
      Overall width
        
          43.4 inches (711 mm)        
      Ground clearance
      
                  9.5 inches (155 mm)              
    Fuel capacity
      
                  1.45 gallons (5.5 litres)              
    Oil capacity
      
                  0.37 gallons (1.4 litres)              
    Further motorcycle information
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    Insurance costs
        
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