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Visual tyre inspections - How often do you do yours?

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    #1

    Visual tyre inspections - How often do you do yours?

    They should be done before each ride, yeah right!!

    I have a front Sport Demon that has outlasted 1 &1/2 rears, but is badly cupping. On this mornings inspection, I discovered a lamination that runs transversely across the tread. I was dismayed to find this, as I have a pretty high regard for these tyres general performance. Is lamination a general regular occurance across brands, or should I be weary of replacing this tyre with a replacement Sport Demon?

    http://i155.photobucket.com/albums/s309/49er_photos/P1000370.jpg


    http://i155.photobucket.com/albums/s309/49er_photos/P1000369.jpg
    :) The road to hell is paved with good intentions......................................

    GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
    GS 850GT JE 1023 11-1 pistons. Sold
    GS1150ES3 stock, V&H 4-1. Sold
    GS1100GD, future resto project. Sold

    http://i155.photobucket.com/albums/s...s/P1000001.jpg
    http://i155.photobucket.com/albums/s...s/P1000581.jpg
    Tags: None
    #2
    I had that happen to a Dunlop GT501 and I replaced it.
    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
    1985 GS1150ES stock with 85 Red E bodywork.

    Comment

      #3
      I don't think that's anything to do with lamination, not sure what it is. Good time to ask some tire experts?
      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

      Life is too short to ride an L.

      Comment

        #4
        This tire looks pretty well used up so no real loss in tossing it.




        Ed

        To measure is to know.

        Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

        Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

        Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

        KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

        Comment

          #5
          Com on Ed, it's only just scrubbed in.

          Alright it's stuffed, but should it have laminated at all? It's definetly lamination and it isn't just situated in that position.
          :) The road to hell is paved with good intentions......................................

          GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
          GS 850GT JE 1023 11-1 pistons. Sold
          GS1150ES3 stock, V&H 4-1. Sold
          GS1100GD, future resto project. Sold

          http://i155.photobucket.com/albums/s...s/P1000001.jpg
          http://i155.photobucket.com/albums/s...s/P1000581.jpg

          Comment

            #6
            Either you ran over a perfectly straight knife or bad molding from the manufacture.
            1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
            1985 GS1150ES stock with 85 Red E bodywork.

            Comment

              #7
              Originally posted by chef1366 View Post
              Either you ran over a perfectly straight knife or bad molding from the manufacture.
              No knives involved here. I could see that glazed look in your eyes Bill.

              When I peel back the rubber, I can see the shinny surface of rubber at an oblique angle to a depth of around 2-3 mm. IMO, definately a molding flaw.

              If it were in a steel section, it would have been caused by the metal cooling too fast during the extrusion process. Possibly the same for rubber.
              :) The road to hell is paved with good intentions......................................

              GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
              GS 850GT JE 1023 11-1 pistons. Sold
              GS1150ES3 stock, V&H 4-1. Sold
              GS1100GD, future resto project. Sold

              http://i155.photobucket.com/albums/s...s/P1000001.jpg
              http://i155.photobucket.com/albums/s...s/P1000581.jpg

              Comment

                #8
                Originally posted by chef1366 View Post
                Either you ran over a perfectly straight knife or bad molding from the manufacture.
                He musta been in my garage and ran over a razor blade

                Comment

                  #9
                  Originally posted by posplayr View Post
                  He musta been in my garage and ran over a razor blade
                  Not possible. You were banned from associating with razor blades after your last MLS gasket failure.
                  :) The road to hell is paved with good intentions......................................

                  GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
                  GS 850GT JE 1023 11-1 pistons. Sold
                  GS1150ES3 stock, V&H 4-1. Sold
                  GS1100GD, future resto project. Sold

                  http://i155.photobucket.com/albums/s...s/P1000001.jpg
                  http://i155.photobucket.com/albums/s...s/P1000581.jpg

                  Comment

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