450/550 Mag rotor diameter

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  • Gammaboy
    • Feb 2026
    #1

    450/550 Mag rotor diameter

    Can someone measure the outside diameter of the 450/550 mag rotor for me?
    Thanks
    Last edited by Guest; 08-29-2014, 12:57 AM.
    Tags: None
    • Big Rich
      #2
      Have a look here:

      MetalGear International PTY LTD
      http://www.metalgear.com.au/
      MetalGear International PTY LTD based in North Brisbane is a manufacturer of motorcycle, scooter and ATV brake discs and brake pads as well as refurbishment specialists of classic and collectible motorcycle brake discs. Call our Sales Team now for more information.


      On the left side of the page, use the "search by bike" option. They give great dimensions for all kinds of rotors.

        Comment

        • Gammaboy
          #3
          Magneto rotor, not brake rotor. Thanks anyway.

            Comment

            • tom203
              Forum Guru
              Past Site Supporter
              • Aug 2010
              • 8925
              • Norway,Maine
              #4
              Likely same size as my 650 (stator is same size): 118mm outside diameter
              1981 gs650L

              "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

                Comment

                • Guest
                  #5
                  Hey Gammaboy, didn't realise you were over here! PeteGS on KA forum

                  I have a weep somewhere around my sprocket cover or stator cover area... if it's the stator cover and I have to rip it off at the next service I'll give it a measure for you. Should be a week or two after the 6th September run.

                    Comment

                    • Gammaboy
                      #6
                      Pete - no stress, they're the same part as the 650 I believe, so as answered above by Tom203.
                      Thanks Guys.

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                        • Guest
                          #7
                          Too easy Gamma!

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                            • landshark
                              #8
                              Ive got a 550 one at home, ill try to check tonight to confirm for you.

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