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gear ratio rpm's messed up...mystery.

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    #31
    Well, the formula I gave you should help you get to a target zone...within a few mph.
    EULC ON

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      #32
      my math says I should be running 62.7mph @ 4000 but I am only getting 56mph

      Thanks Bill for the help
      KATANA CUSTOMS/TECH

      Instagram: @rjmedia.tech, Updated more often, even from the events

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        #33
        You're welcome...
        EULC ON

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          #34
          THE rpm mystery was a simple deal..the cars speedo is way off. I paced some bikes on the hwy and my speedo is bang on.....oooooops.

          thanks for the help and sorry for not double checking my sources....
          KATANA CUSTOMS/TECH

          Instagram: @rjmedia.tech, Updated more often, even from the events

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            #35
            Excellent!! Thats good news...
            EULC ON

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              #36
              on my 81 GS1100 with GSXR wheels and 530 chain I like the 17/39 gearing. A bigger motor with more Torque likes taller gearing.

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                #37
                wow your speedo was useless.

                17/47 gives a correct speed at 60mph. 39 is considerably tall....

                180mph gearing.
                KATANA CUSTOMS/TECH

                Instagram: @rjmedia.tech, Updated more often, even from the events

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                  #38
                  speedometer and gearing

                  Hi Katman. Your reference to the speedometer being useless with 17 39 gearing in your last post leaves me confused. On gs or 90ish GSXR the speedometer pickup is on the front wheel. I don't see where gearing has anything to do with it.

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                    #39
                    I use the GSXR USD front end witht he stock wheel and speedo drive. I assume it's right but I have not checked it. I hope to run 170 in the 1/4 mile with it this summer.... with the Turbo setup.

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                      #40
                      Originally posted by Big_T
                      I use the GSXR USD front end witht he stock wheel and speedo drive. I assume it's right but I have not checked it. I hope to run 170 in the 1/4 mile with it this summer.... with the Turbo setup.
                      LOve the turbo's.....
                      KATANA CUSTOMS/TECH

                      Instagram: @rjmedia.tech, Updated more often, even from the events

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                        #41
                        gearing and speedometer

                        Katman i am confused by your post. the gearing has nothing to do with your speedometer calibration. The speedometer drive is in the front wheel. you can change gearing up and down without affecting your speedometer calibration.

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                          #42
                          oooooooooops,

                          what do you mean?? I didn't say anything....
                          KATANA CUSTOMS/TECH

                          Instagram: @rjmedia.tech, Updated more often, even from the events

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                            #43
                            Re: speedometer and gearing

                            Originally posted by maru
                            Hi Katman. Your reference to the speedometer being useless with 17 39 gearing in your last post leaves me confused. On gs or 90ish GSXR the speedometer pickup is on the front wheel. I don't see where gearing has anything to do with it.
                            NO, you miss understood...what I said was my brain is useless.....
                            KATANA CUSTOMS/TECH

                            Instagram: @rjmedia.tech, Updated more often, even from the events

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                              #44
                              I knew what you meant. The new bikes drive off of the sprocket now. Gear changes mess it up.

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