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  • Brake rotor swap

    Are the brake rotors the same across all years? Looking to swap a set of slotted rotors from an 80 special to a 78E. How about the fork dust boots?
    Nate

    78 XS11 "Matilda" 2H7 000364

    2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
    Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
    Shinko 712s, HID Headlight, RC Performance Exhaust
    Bikemaster Daytona Handlebars, Galfer SS Brake Lines
    Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
    K+N Air Filter

    88 Voyager XII
    81 XJ650 Maxim

  • #2
    XS1100SG to XS1100E is no problem with a rotor swap. XS650 rotors swap too. Special calipers will not swap to the E.

    The dust seals do not swap between the two bikes you listed.
    Marty (in Mississippi)
    XS1100SG
    XS650SK
    XS650SH
    XS650G
    XS6502F
    XS650E

    Comment


    • #3
      Great thanks a lot.
      Nate

      78 XS11 "Matilda" 2H7 000364

      2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
      Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
      Shinko 712s, HID Headlight, RC Performance Exhaust
      Bikemaster Daytona Handlebars, Galfer SS Brake Lines
      Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
      K+N Air Filter

      88 Voyager XII
      81 XJ650 Maxim

      Comment


      • #4
        Not the early ones

        Like Marty sez,
        XS650 front disks fit but only the later one-piece disks. Earlier model XS650 2-piece disks will bolt up to an XS11 wheel but won't enter the calipers because they are dished to a different depth.
        Watch that you are not offered XS650 rear disks or any XS750/850 disks.
        They look the same as XS650/XS11 disks and will also bolt up to an XS11 wheel but they are ~1" smaller in diameter.
        Fred Hill, S'toon
        XS11SG with Spirit of America sidecar
        "The Flying Pumpkin"

        Comment


        • #5
          The other thing to look for is the slots in the later models as opposed to the solid earlier ones. I guess that only applies to looks or if you may be buying off ebay. Just kind of looks dumb having one slotted rotor and a solid one on the other side.
          2-79 XS1100 SF
          2-78 XS1100 E Best bike Ever
          80 XS 1100 SG Big bore kit but not fully running yet.
          Couple of more parts bikes of which 2 more will live!

          Comment


          • #6
            Actually, Im going to be picking up an 80 special bobber/hardtail. It has the slotted rotors and being that it will be a future project and sit in my garage for quite some time, I want to put the slotted rotors on my 78. I was going to put the dust boots on to the 79 but it looks like thats out of the question.
            Nate

            78 XS11 "Matilda" 2H7 000364

            2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
            Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
            Shinko 712s, HID Headlight, RC Performance Exhaust
            Bikemaster Daytona Handlebars, Galfer SS Brake Lines
            Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
            K+N Air Filter

            88 Voyager XII
            81 XJ650 Maxim

            Comment


            • #7
              Yes they are all the same.

              BUT

              There is a assembly line "corective" rotor that has a slightly different dish to it. Don't remember if it is deeper or shallower but it won't work if you get one. There is no way to tell which one it is until you have it laying on a table and measure it.
              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


              • #8
                Interesting. Well, if there turn out different its no big deal. Will just keep em on the original bikes.
                Nate

                78 XS11 "Matilda" 2H7 000364

                2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
                Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
                Shinko 712s, HID Headlight, RC Performance Exhaust
                Bikemaster Daytona Handlebars, Galfer SS Brake Lines
                Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
                K+N Air Filter

                88 Voyager XII
                81 XJ650 Maxim

                Comment


                • #9
                  The difference is .050" deeper. Not a lot, and not something you can see by 'eye', but definitely enough to screw up wheel/caliper alignment....

                  I've got two of 'em, and one caused me all kinds of trouble when I was trying to do a caliper swap....
                  Fast, Cheap, Reliable... Pick any two

                  '78E original owner - resto project
                  '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                  '82 XJ rebuild project
                  '80SG restified, red SOLD
                  '79F parts...
                  '81H more parts...

                  Other current bikes:
                  '93 XL1200 Anniversary Sportster 85RWHP
                  '86 XL883/1200 Chopper
                  '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                  Cage: '13 Mustang GT/CS with a few 'custom' touches
                  Yep, can't leave nuthin' alone...

                  Comment

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