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Twinpot Brake Upgrade on GS550E - GS750C - GS1000C

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    #16
    FYI I thought I recalled when mocking up twin pot calipers to custom fab a weld-on adapter bracket, that the 310mm rotors worked out perfectly IF the location of the relocated lower/rear mounting hole was altered slightly from where it needs to be for the dual disc 296mm location. I may recall the pad being right at the very edge of the rotor, but from what I recalled, a 320mm rotor would most definitely have close to 4mm excess rotor hanging off of the edge beyond the pads.

    That has me very curious about this 316mm diameter rotor, although it seems to be only a non-USA model, as that NTV650 searched on eBay USA brings up solid rotors with a significantly larger center bore and bolt pattern. So unless one could cross reference the metalgear specs over to EBC, having one shipped from Australia is the best bet. It would be nice to find out if any US models used that particular rotor... So that we could source them used!
    '77 GS750 920cc heavily modded
    '97 Kawasaki KDX220R rugged terrain ripper!
    '99 Kawasaki KDX220R​ rebuild in progress
    '79 GS425stock
    PROJECTS:
    '77 Suzuki PE250 woods racer
    '77 GS550 740cc major mods
    '77 GS400 489cc racer build
    '76 Rickman CR1000 GS1000/1100
    '78 GS1000C/1100

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      #17
      Thanks for sharing

      Originally posted by hotrodalex View Post
      I did indeed get it done that weekend, just haven't gotten around to posting about it.

      - CBR1100XX Blackbird rotor from ebay
      - front left caliper from a 2000 Kawasaki Concours ZG1000A from ebay, practically new pads included
      - SS lines from Slingshot Cycles (http://www.slingshotcycles.com/GS550_c_95.html)
      - Speed bleeder from Slingshot (SB7100)
      - Stock master cylinder

      And while I was at it, I replaced the wheel bearings too. Bike stops much better, although the MC seems to be on the small side. Lever travel is fairly long, but easy effort.

      I am in the process of buying a '83 GR650. Been thinking about rebuilding an older suzuki for sometime. As I start down this process will make sure to post my progress and share. Besides the carb rebuild, the brakes were going to be my second item to rebuild. Appreciate the info
      1983 GR650 Tempter Rebuild - Completed and Sold

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        #18
        There are a few guys running this setup now. You have to chamfer one corner of the pads to stop it wearing an edge where they don't touch the rotor but reports are good...
        1980 GS1000G - Sold
        1978 GS1000E - Finished!
        1980 GS550E - Fixed & given to a friend
        1983 GS750ES Special - Sold
        2009 KLR 650 - Sold - gone to TX!
        1982 GS1100G - Rebuilt and finished. - Sold
        2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

        www.parasiticsanalytics.com

        TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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          #19
          Bumping this for the guy looking for his 550. I do have brackets available.
          1980 GS1000G - Sold
          1978 GS1000E - Finished!
          1980 GS550E - Fixed & given to a friend
          1983 GS750ES Special - Sold
          2009 KLR 650 - Sold - gone to TX!
          1982 GS1100G - Rebuilt and finished. - Sold
          2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

          www.parasiticsanalytics.com

          TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

          Comment

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