1938 BMW R23
 
          General motorcycle information
Engine and transmission
Displacement
        
                      15.07 cubic inches            (247.0 ccm)
                  
      Engine type
        
          Single cylinder, 4 stroke        
      Power
      
                  10.1 horsepowers          (7.5 kiloWatts)
           at 5400 RPM              
    Torque
      
                  -
              
    Compression
      
                  6.1:1
              
    Bore x stroke
      
                  4.15 x 4.15 inches (68.0 x 68.0 mm)              
    Fuel system
      
                  Carburettor              
    Fuel control
        
          Overhead Valves (OHV)        
      Cooling system
      
                  Air              
    Gearbox
      
                  3-speed              
    Transmission type, final drive
      
                  Shaft drive (cardan)              
    Starter
      
                  Kick              
    Fuel consumption
      
                  -
              
    Top speed
      
                  95.0 kmh (59.0 mph)               
    Chassis, suspension, brakes and wheels
Front tyre
        
          2.99-19        
      Rear tyre
        
          2.99-19        
      Front brake
      
                                                          Expanding brake (drum)                        
    Front brakes diameter
        
          9.76 inches (160.0 mm)        
      Rear brake
      
                                                          Expanding brake (drum)                        
    Rear brakes diameter
        
          10.98 inches (180.0 mm)        
      Physical measures and capacities
Dry weight
      
                  -
              
    Wet weight
        
          297.6 pounds (135.0 kg)        
      Seat height
      
                  -
              
    Wheelbase
      
                  81.2 inches (1330 mm)              
    Overall length
        
          122.0 inches (2000 mm)        
      Overall width
        
          48.8 inches (800 mm)        
      Overall height
        
          54.9 inches (900 mm)        
      Ground clearance
      
                  -
              
    Fuel capacity
      
                  2.54 gallons (9.6 litres)              
    Oil capacity
      
                  -
              
    Further motorcycle information
More specs
      
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    Insurance costs
        
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 Italia