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XJ1100 Front Brake Master Cylinder?

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  • #1

    XJ1100 Front Brake Master Cylinder?

    So I bought this cheap Chinese front brake (except mine was black) :
    http://www.ebay.com/itm/Brake-Master...d1e1c5&vxp=mtr

    I would squeeze the hell out of them and my front brakes would do nearly nothing.

    Then yesterday, I was putting my front wheel back on after getting a new front tire.

    I had to compress the piston to get that caliper back on.
    ( forgot to take the top off the master cylinder -_- )
    And my little window that shows fluid lever POPPED,
    so now, no front brakes, again.

    Anyone wanna help me, or give a recommendation as to what lever/master cylinder I should get that will actually do something?

    I would prefer a universal one.

    I know it needs that banjo bolt to be 10x1.25mm.
    and it needs to fit standard 7/8" handlebars.
    Prefer something cheaper-ish.
    Oh and I prefer ebay.

    I noticed now that piston bore on the one I got was only 12mm...
    That way too small?

    This one is 14mm, is it any better?:
    http://www.ebay.com/itm/14mm-7-8-Lef...ff9a2f&vxp=mtr


    OR THIS?! 7/8" piston?? :
    http://www.ebay.com/itm/5-8-16mm-Bra...1319a1&vxp=mtr


    I think that last one should be good, what do you guys think?
    Have:
    1994 FZR600
    1982 XJ1100

    Had:
    1996 YZF600R
    2001 Honda xr125
    Suzuki race 80
    Honda PW 50
    Etc.

    Getting:
    1977 DT400
    Tags: None
  • #2
    I have an original front XJ master cylinder that works but the rear view mirror mount is busted. If you want it it's yours for shipping cost.
    Ty

    78 XS1100E - Now in Minnesota
    80 XS1100LG - The Punisher
    82 XJ1100 - Current project - The Twins
    82 XJ1100 - Wife's Bike - The Twins
    82 XJ1100 - Daughter's Bike
    72 Suzuki TS125 - Daughter's Bike
    72 Yamaha Mini JT2 - Youngest Daughter's bike (She wants a bigger one now)

    Comment

    • #3
      That 14mm one said that is a LEFT side. Probably wont work for your application.

      edit they say they also have the right side ones.
      Last edited by tcoop; 06-09-2014, 10:16 AM.
      Ty

      78 XS1100E - Now in Minnesota
      80 XS1100LG - The Punisher
      82 XJ1100 - Current project - The Twins
      82 XJ1100 - Wife's Bike - The Twins
      82 XJ1100 - Daughter's Bike
      72 Suzuki TS125 - Daughter's Bike
      72 Yamaha Mini JT2 - Youngest Daughter's bike (She wants a bigger one now)

      Comment

      • #4
        I'd like something new, but what condition is it in?
        Got some pics?
        I'd gladly pay you more than shipping for it if it is nice.
        What is the bore size on those?
        Just wondering if something aftermarket would be even better?
        Have:
        1994 FZR600
        1982 XJ1100

        Had:
        1996 YZF600R
        2001 Honda xr125
        Suzuki race 80
        Honda PW 50
        Etc.

        Getting:
        1977 DT400

        Comment

        • #5
          Originally posted by tcoop View Post
          That 14mm one said that is a LEFT side. Probably wont work for your application.
          Yeah just saw that. They have the same one for right hand side too though.
          But I think the other link is better anyways, what do you think?
          Have:
          1994 FZR600
          1982 XJ1100

          Had:
          1996 YZF600R
          2001 Honda xr125
          Suzuki race 80
          Honda PW 50
          Etc.

          Getting:
          1977 DT400

          Comment

          • #6
            Are you still running the linked brakes? or is you Front MC controlling both front calipers?
            Ty

            78 XS1100E - Now in Minnesota
            80 XS1100LG - The Punisher
            82 XJ1100 - Current project - The Twins
            82 XJ1100 - Wife's Bike - The Twins
            82 XJ1100 - Daughter's Bike
            72 Suzuki TS125 - Daughter's Bike
            72 Yamaha Mini JT2 - Youngest Daughter's bike (She wants a bigger one now)

            Comment

            • #7
              Linked brakes still.
              I was considering unlinking them, but I need a better front brake first, considering that my last one couldn't even operate 1 well!!! hahaha
              Have:
              1994 FZR600
              1982 XJ1100

              Had:
              1996 YZF600R
              2001 Honda xr125
              Suzuki race 80
              Honda PW 50
              Etc.

              Getting:
              1977 DT400

              Comment

              • #8
                I'm not an expert on the bore sizes needed, but I would think the 14mm would work. the 5/8" May not allow the brake handle to travel much to give you more control.

                The XS1100 stock front MC are 14mm and some are 9/16". If you are going to de-link them I would lean towards the 5/8" but I think the 14mm should work for both ways.
                Ty

                78 XS1100E - Now in Minnesota
                80 XS1100LG - The Punisher
                82 XJ1100 - Current project - The Twins
                82 XJ1100 - Wife's Bike - The Twins
                82 XJ1100 - Daughter's Bike
                72 Suzuki TS125 - Daughter's Bike
                72 Yamaha Mini JT2 - Youngest Daughter's bike (She wants a bigger one now)

                Comment

                • #9
                  Originally posted by tcoop View Post
                  I'm not an expert on the bore sizes needed, but I would think the 14mm would work. the 5/8" May not allow the brake handle to travel much to give you more control.

                  The XS1100 stock front MC are 14mm and some are 9/16". If you are going to de-link them I would lean towards the 5/8" but I think the 14mm should work for both ways.
                  Ok, well I think I wan't to unlink them at some point, So I think I will go with the 5/8" ...Plus I'd rather have more braking power than less, I can get used to touchy brakes, my FZR'S front brakes are adjustable and I have them on the stiffest setting.

                  Thanks for the help making my decision!

                  Check your PM's too.
                  Have:
                  1994 FZR600
                  1982 XJ1100

                  Had:
                  1996 YZF600R
                  2001 Honda xr125
                  Suzuki race 80
                  Honda PW 50
                  Etc.

                  Getting:
                  1977 DT400

                  Comment

                  • #10
                    You can get new reproduction mater cylinders for the XS650's and some of them had the exact same dual front disc setup as the XS1100.
                    Nathan
                    KD9ARL

                    μολὼν λαβέ

                    1978 XS1100E
                    K&N Filter
                    #45 pilot Jet, #137.5 Main Jet
                    OEM Exhaust
                    ATK Fork Brace
                    LED Dash lights
                    Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                    Green Monster Coils
                    SS Brake Lines
                    Vision 550 Auto Tensioner

                    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                    Theodore Roosevelt

                    Comment

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