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Size of the center hole front brake rotor

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  • Size of the center hole front brake rotor

    i have a 79 1100 special

    can anyone tell me the size of the center hole in the rotors

    so i dont have to pull mine yet?

    thanks
    79 SF

  • #2
    64mm , just like loads of other disks
    XS1100 3X0 '82 restomod, 2H9 '78 chain drive racer, 3H3 '79 customized.
    MV Agusta Brutale 910R '06.
    Triumph 1200 Speed Trophy '91, Triumph 1200 '93.
    Z1 '73 restomod, Z1A '74 yellow/green, KZ900 A4 '76 green.
    Yamaha MT-09 Tracer '15 grey.
    Kawasaki Z1300 DFI '84 modified, red.

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    • #3
      that is what i needed confirmed

      thanks
      79 SF

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      • #4
        If you're looking to do a disc swap, remember that the XS discs are dished and quite a bit thicker than most newer ones (.270" vs .2 to .225"). There are some aftermarket discs available for the XS, but most require shimming the caliper in or out; something you can't do with the special front brakes. EBC makes a XS11-specific rotor for these, but at $230 each a bit pricey.... http://www.650central.com/
        Last edited by crazy steve; 12-10-2014, 12:21 PM.
        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...

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        • #5
          This is a great help: http://www.braking.com

          Look under catalogue > advanced search > disks...
          XS1100 3X0 '82 restomod, 2H9 '78 chain drive racer, 3H3 '79 customized.
          MV Agusta Brutale 910R '06.
          Triumph 1200 Speed Trophy '91, Triumph 1200 '93.
          Z1 '73 restomod, Z1A '74 yellow/green, KZ900 A4 '76 green.
          Yamaha MT-09 Tracer '15 grey.
          Kawasaki Z1300 DFI '84 modified, red.

          Comment

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