After market speedometer and tachometer

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  • Guest

    #1

    After market speedometer and tachometer

    Hi, i installed an after market speedo & tach on my 81' gs550t but the speed seem to be really out of spec. I suspect i installed a speedo with a different ratio. So does anyone know the speedometer ratio ? 1/4,1/8 ?
  • kochic
    Forum Sage
    • Nov 2008
    • 1433
    • St-Jean-de-Matha,Quebec

    #2
    You need a 2240:60 speedometer, 2240 cable revolutions at 60mph.
    Marc
    https://www.thegsresources.com/_foru...ie_twisted.gif AIR COOLED MONSTERS NEVER DIE https://www.thegsresources.com/_foru...ie_twisted.gif
    1978 GS1000C X2
    1978 GS1000E X2
    1979 GS1000S
    1979 gs1000
    1983 gs400e

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    • Guest

      #3
      get the gps speedo no ratio needed

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