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Front caliper rebuild kits? '78 GS750 E

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    Front caliper rebuild kits? '78 GS750 E

    Seems like Powerhouse in UK at nearly $50 (!) is the only supplier for these--is that right? Or have I missed other options?
    thanks
    1978 GS 750 E
    1979 XS11 Standard
    1973 CB450
    1999 VFR800

    #2
    You can order the parts from any Suzuki dealer or OEM parts site. If you're after the stainless steel pistons, they may only be available from a UK (or maybe EU) company.
    Jordan

    1977 Suzuki GS750 (My first bike)
    2000 Kawasaki ZRX1100
    1973 BMW R75/5

    Comment


      #3
      Those parts seem to be discontinued through Suzuki. The good news though is that the later year calipers are a direct bolt on and they work better. Parts support is better too.
      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

      Comment


        #4
        Wemoto has complete rebuild kits. Nessism is right though. The early calipers aren’t really that great.
        1978 Suzuki GS750

        Past bikes owned:
        1978 Suzuki GS750E, 1979 Suzuki GS750E, 1980 Suzuki GS850, 1977 Suzuki GS550, 1969 Honda CB350, 1976 Harley Davidson SS175, 1979 Motobecane 50V, 1978 Puch Maxi, 1977 Puch Newport, 1980 Tomos Bullet, 1978 Motobecane 50VLA, 1978 AMF Roadmaster

        Comment


          #5
          Originally posted by Nessism View Post
          Those parts seem to be discontinued through Suzuki. The good news though is that the later year calipers are a direct bolt on and they work better. Parts support is better too.
          Good to know, what years are you referring to exactly?
          1978 GS 750 E
          1979 XS11 Standard
          1973 CB450
          1999 VFR800

          Comment


            #6
            1980 onwards. Bolt for bolt fitting, but if you're buying used (and you will be) make sure they're off a NON-L model, as the brackets on the L models are different, although the calipers are the same.
            ---- Dave
            79 GS850N - Might be a trike soon.
            80 GS850T Single HIF38 S.U. SH775, Tow bar, Pantera II. Gnarly workhorse & daily driver.
            79 XS650SE - Pragmatic Ratter - goes better than a manky old twin should.
            92 XJ900F - Fairly Stock, for now.

            Only a dog knows why a motorcyclist sticks his head out of a car window

            Comment


              #7
              Ok thanks. Does the pitting on this piston look too extensive? No vertical scoring.
              IMG_2099.jpg
              1978 GS 750 E
              1979 XS11 Standard
              1973 CB450
              1999 VFR800

              Comment


                #8
                Originally posted by Forden View Post
                Ok thanks. Does the pitting on this piston look too extensive? No vertical scoring.
                [ATTACH=CONFIG]63139[/ATTACH]
                That piston is JUNK!
                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

                Comment


                  #9
                  Ah geez. Wonderful. Back to ebay, or the used parts forum... at least powerhouse has the pistons too, if I stick with these.
                  Thanks everyone.
                  1978 GS 750 E
                  1979 XS11 Standard
                  1973 CB450
                  1999 VFR800

                  Comment


                    #10
                    Have you checked Brake Crafters yet? They sell good kits with stainless parts that should last a long long time. https://www.brakecrafters.com/
                    1982 GS1100E "Jolene"

                    Comment


                      #11
                      Originally posted by TxGSrider View Post
                      Have you checked Brake Crafters yet? They sell good kits with stainless parts that should last a long long time. https://www.brakecrafters.com/
                      Yeah, they only show brake pads for my bike, nothing else. Thanks
                      1978 GS 750 E
                      1979 XS11 Standard
                      1973 CB450
                      1999 VFR800

                      Comment


                        #12
                        Originally posted by Forden View Post
                        Yeah, they only show brake pads for my bike, nothing else. Thanks
                        I wonder if you gave them the measurements if they could find one that's the same?
                        1982 GS1100E "Jolene"

                        Comment


                          #13
                          Originally posted by TxGSrider View Post
                          I wonder if you gave them the measurements if they could find one that's the same?
                          Worth asking, I guess. I emailed them to find out. They do show several 38mm OD sizes, though the original Suzuki service manual specifies 38.105mm minimum service limit, so they'd have to be checked exactly for that spec, no?
                          Last edited by Forden; 08-06-2021, 03:59 PM.
                          1978 GS 750 E
                          1979 XS11 Standard
                          1973 CB450
                          1999 VFR800

                          Comment

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