1990 Kawasaki KX 125
          
      General motorcycle information
Engine and transmission
Displacement
        
                      7.57 cubic inches            (124.0 ccm)
                  
      Engine type
        
          Single cylinder, 2 stroke        
      Power
      
                  37.8 horsepowers          (28.2 kiloWatts)
           at 11500 RPM              
    Torque
      
                              18.07 pound-foot/lbf-ft            (24.50 Nm / 2.50 kgf-m)
                     at 10500 RPM              
    Compression
      
                  8.2:1
              
    Bore x stroke
      
                  3.42 x 3.09 inches (56.0 x 50.6 mm)              
    Fuel system
      
                  Carburettor              
    Cooling system
      
                  -
              
    Gearbox
      
                  6-speed              
    Transmission type, final drive
      
                  -
              
    Starter
      
                  Kick              
    Fuel consumption
      
                  -
              
    Top speed
      
                  -
              
    Chassis, suspension, brakes and wheels
Rake (fork angle)
        
          25.5°
        
      Trail
        
          6.59 inches (108.0 mm)        
      Front suspension travel
        
          18.92 inches (310.0 mm)        
      Rear suspension travel
        
          20.14 inches (330.0 mm)        
      Front tyre
        
                      80/100-21 51                  
      Rear tyre
        
                      100/90-19 57                  
      Front brake
      
                                      Single disc                                            
    Front brakes diameter
        
          13.42 inches (220.0 mm)        
      Rear brake
      
                                       Single disc                                             
    Rear brakes diameter
        
          11.59 inches (190.0 mm)        
      Physical measures and capacities
Dry weight
      
                  190.7 pounds (86.5 kg)              
    Seat height
      
                  -
              
    Wheelbase
      
                  88.2 inches (1445 mm)              
    Overall length
        
          130.3 inches (2135 mm)        
      Overall width
        
          49.7 inches (815 mm)        
      Overall height
        
          74.1 inches (1215 mm)        
      Ground clearance
      
                  5.7 inches (93 mm)              
    Fuel capacity
      
                  2.25 gallons (8.5 litres)              
    Oil capacity
      
                  -
              
    Further motorcycle information
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    Insurance costs
        
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