Swing arm upgrade for the GS 550???

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tkent02
    Forum LongTimer
    Past Site Supporter
    • Jan 2006
    • 35571
    • Near South Park

    #1

    Swing arm upgrade for the GS 550???

    Is there a simple bolt on swing arm upgrade for the early 550, similar to bolting an 1100E swing arm on an early GS1000?

    Are the ones from a later 550 any better/stronger/lighter?
    http://img.photobucket.com/albums/v5...tatesMap-1.jpg

    Life is too short to ride an L.
  • salty_monk
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    Super Site Supporter
    • Oct 2006
    • 14002
    • London, UK to Redondo Beach, California

    #2
    People have made the 1100 fit the 750 frame... maybe the 550 can also take it with some mods.
    Not heard of any bolt-on...
    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

    • tkent02
      Forum LongTimer
      Past Site Supporter
      • Jan 2006
      • 35571
      • Near South Park

      #3
      Originally posted by salty_monk
      People have made the 1100 fit the 750 frame... maybe the 550 can also take it with some mods.
      Not heard of any bolt-on...
      Maybe...

      The width in front is the same as the 550, it fits the frame perfectly. The pivot shaft diameter is a little bigger, no problem there. The brake stay is on the top, not the bottom, no big deal to fix that. It's longer, it locates the wheel almost two inches farther back. Maybe someone talented could shorten it, that's over my head. The hardest to fix is that it's wider at the wheel, about an inch. Spacers for the axle would be fine, but that leaves the shock mounts an inch too wide to match the upper mounts on the frame...

      So yeah, maybe.
      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

      Life is too short to ride an L.

      Comment

      • salty_monk
        Forum LongTimer
        GSResource Superstar
        Past Site Supporter
        Super Site Supporter
        • Oct 2006
        • 14002
        • London, UK to Redondo Beach, California

        #4
        If you did all the cutting and clamping a good tig welder could stitch it back together. Running the wheel 2" back may not be a big deal, run it at the front of the adjustment slots and you'd get an inch of that back.

        On the width I would think you could use a jack on each side to bring it in to line..... You would probably need to build a bit of a jig to make sure that you moved each side evenly.

        I would think it's also very simple job to cut the top mounts off and space them out from the frame to match. Welding necessary but easy job....
        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

        • Buffalo Bill
          Forum Guru
          Past Site Supporter
          Super Site Supporter
          • Jun 2008
          • 6006
          • New Buffalo, Michigan 49117

          #5
          Pioneer work?

          It seems like in a case like this, you just have to buy the parts, hold them up and see if they fit.
          Myself, I would only look at the 600cc bikes for possible swing arms.
          Bill
          1982 GS1100G-
          1990 GSX750/1127
          1987 Honda CBR600F Hurricane
          1985 Kawasaki GPz750

          Comment

          • tkent02
            Forum LongTimer
            Past Site Supporter
            • Jan 2006
            • 35571
            • Near South Park

            #6
            If the arms are cut at the angle that the arms go back, in other words cut the arms straight across them, which is at an angle to the bike, then removing an inch and a half will also bring the ends closer together by about the right amount... Got to get some accurate measurements, but this will work.

            I just need someone good to do the cutting and the welding, it has to be accurate and it has to be strong. Any professional aluminum cutters/welders on the forum?
            http://img.photobucket.com/albums/v5...tatesMap-1.jpg

            Life is too short to ride an L.

            Comment

            Working...