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    Hose help.

    5 months and I've yet to replace my GS brake hose. Oh well....
    Most vendor sites are crappy but https://ca.helperformance.com/custom-brake-hose
    Is nice. I did a lookup for fitment on alpha sports using the seal and union bolt specs as a guide to give me this:

    LENGTH - 100cm












    SPECIFICATIONS
    • COLOURBLACK

    • FITTING ONEBANJO - M10 / 3/8"
    • FITTING ONE ANGLE20°
    • FITTING TWOFIXED MALE - M10 X 1.00
    • FITTING TWO ANGLE
    • SUPPORT ONERUBBER GROMMET
    • SUPPORT TWO
    • HEATSHRINKYES
    • LENGTH100cm



    Can anyone help confirm? 83 gs 550
    I was pretty shocked by the 7ish cm the old hose stretched whilst I attempted to straighten it. to measure length.
    its far more shocking than the perception of firmness when gripping it and applying pressure
    Isn't that 7%?
    Last edited by Cipher; 04-01-2021, 05:37 PM.
    1983 GS 550 LD
    2009 BMW K1300s

    #2
    That looks like a bill of materials for making brake lines. Very little can be learned from it.
    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
      Its a list made from entering the presumed fittings and measured length with a few variables such as colour and heat shrink tubing.

      Some of the items are not applicable so no description shows up.

      Basically I have measured the old assembly at 100 cms.
      The union bolt ( Banjo bolt ) is 10x1.00x24 as per the parts fiche number so the corresponding banjo fitting must be 10mm and its certainly at 20 degrees.
      The caliper has this bit attached. the bottom hose end has a straight fitting so I checked the size by threading in the union bolt so the treads match and are m10x1.00.

      I am confused by the m10 3/8 spec on the aftermarket website not sure if that's a fit.
      1983 GS 550 LD
      2009 BMW K1300s

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        #4
        Aren't you near Apex? Lots of people seem happy with his work and he has most of the GS stuff in his database....
        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.....

        www.parasiticsanalytics.com

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

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