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Wider Rear Tire 1978 GS750

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    Wider Rear Tire 1978 GS750

    This topic has already been covered, but I'd like a few opinions. I know size of tires recommended for my 750 Front 3.25/90/19 and Rear 4.00/90/18. But... I would like to put a wider rear tire on. How wide can I go on the rim of a 1978 GS750? Or better yet, how wide have some of you used on your bike?

    Thanks,

    Scudder

    #2
    Search function Scudder. This topic has been covered again and again.

    Bottom line, a 120 is the max recommended tire for your rim which is 2.15" wide.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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      #3
      Covered too many times, but if you put anything wider than the reccomended tire widths on motorcycle rims you will get a distortion of the tires contour and the handling will suffer. I know this from experience.

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        #4
        Oops

        Ok. I searched it. Should've done that first. Thanks anyway.

        Scudder

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          #5
          Why would you want a wider tire? I have no trouble with grip on the road with stock size tires. Plus they are cheap.

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            #6
            Switch to a 78 1000 wheel, I believe it's only a bearing swap & then you can use a 130 tyre. Check clearance for swingarm, brake torque arm etc.

            Dan
            1980 GS1000G - Sold
            1978 GS1000E - Finished!
            1980 GS550E - Fixed & given to a friend
            1983 GS750ES Special - Sold
            2009 KLR 650 - Sold - gone to TX!
            1982 GS1100G - Rebuilt and finished. - Sold
            2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

            www.parasiticsanalytics.com

            TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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              #7
              No probs running a 130 (120 stock) here on the '81. Just a mosquito's ass hair off the brake stay.

              Brad bk

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