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  1. #1
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    2 Iron Horse MKIII's....2 cracked rear triangles. What to do?

    I am riding a 2006 MKIII sport and have been for about 2 years. At first I loved it so much that I convinced my buddy to grab one as well. Loved the bike, until last week. He loved his 2007, until last week.

    He was cleaning things up and he noticed a crack on the right side of his rear triangle above the chainstay. A complete crack right above the weld. I thought it was a fluke, so I checked mine....a freaking 3/4 crack! Both frames cracked at the exact same spot....design flaw much?

    I am confused as to were to go from here. I know my frame is no longer under warranty, but do they sell rear triangles? Should I even bother since it will likely crack at the same spot. Have they fixed the defect with the newer years?

    Very frustrated right now....when the rage calms down enough for me to snap a pick I will.
    El Guapoooooooo

  2. #2
    Fragglepuss The Chaste
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    There are numerous companies out there who repair frames-assuming yours can be fixed. Given the current situation you may have better luck going that route (cost and turn around time) anyway. I would expect that if you do go that route, that you'll have an area where the repair was done down to bare metal and it may look a little rough depending on the experience of the welder and where the frame is cracked. So while you're waiting for your swing arm to return, you can spend some time at Checker/Auto Zone matching cans of Krylon.

    Take some up close digital photos, round up a box and some bubble wrap, do a search on Google and start inquiring.

    Or you can sit tight and see what response RS Cycles, or whomever the new owners of IH might be, have to say about past warranty issues. Remember though that anyone who steps forward and picks up IH, which is supposedly bankrupt, probably won't have any legal obligation to cover your bike.

  3. #3
    shredder
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    sounds like it should be a recall issue not a warrenty issue

  4. #4
    GAME ON!
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    there's a rear triangle on ebay right now, but it's 07
    RIP Adam Yauch

    "M.C. for what I AM and do, the A is for Adam and the lyrics; true"

  5. #5
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    Quote Originally Posted by jimbot5000
    sounds like it should be a recall issue not a warrenty issue
    Can't have a manufacturer recall when there is no company anymore.

  6. #6
    AKA; Jimmy Tango
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    I just found this little gem on mine sunday night,...after reading about a cracked swingarm on this forum. Went to the cave to check my frame, and sure enough, a crack. Spoke with RS, and I am at their mercy. Although, I am kinda thinking I am screwed, so I am looking for a new frame. Something not IH.
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    http://www.street-steeze.com/ Reach High, Stand Firm!

  7. #7
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    Change to a Giant Reign or Reign X, perhaps even a Glory...at least you assured quality and a life time warrenty with some of the best CS in the industry with usually a quick turn around time depending on the situation and parts available for various specific models as such.

    Sorry to hear that everyones IH is cracking and falling apart...good luck trying to get your bikes replaced.

  8. #8
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    That is the exact spot of both my 2006 and my buddies 2007. Definite design flaw.


    Looking into people around here that weld and also looking into new frames. Right now Heckler is in the lead due to my budget.
    El Guapoooooooo

  9. #9
    AKA; Jimmy Tango
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    It was real nice while it lasted...
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    http://www.street-steeze.com/ Reach High, Stand Firm!

  10. #10
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    I am not giving up on it....I talked to someone who knows welding and they say it can be fixed relatively easily by a machine shop...basically just grind away and add in.
    El Guapoooooooo

  11. #11
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    Yes, but then the whole rear triangle has to be re-heat treated to give it its tensile strength so tp speak.

  12. #12
    Fragglepuss The Chaste
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    Quote Originally Posted by y0bailey
    I am not giving up on it....I talked to someone who knows welding and they say it can be fixed relatively easily by a machine shop...basically just grind away and add in.
    So long as they are a certified TIG welder and aren't cross-eyed, you'll be fine. I've had 2 friends who've gone this route and although not the cleanest fix aesthetically, both of their bikes are still going strong and their breaks were a lot worse and on a bigger section of swing arm than the photo above. Pinched/crimped downtubes, top tubes and seat tubes might be a different story.

    I think both paid around $30 locally and had their frames fixed within a day or two.

    Even under some of the best warranty situations, most consumers pay for shipping to the manufacturer and don't get their parts back for several weeks-if they're lucky. There are few exceptions to this situation, like Turner and Ibis, but most can't turn them quickly.

  13. #13
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    Quote Originally Posted by Sim2u
    but then the whole rear triangle has to be re-heat treated to give it its tensile strength so to speak.
    Maybe, and maybe not. It depends on the alloy. Some aluminum alloys (like 6061) need heat treatment to restore strength after welding, some (like 7005) don't.

  14. #14
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    True, yet the majority of most bikes are made out of....
    Last edited by Sim2u; 04-09-2009 at 12:55 AM.

  15. #15
    eBiker
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    Sorry for you guys...

    P

  16. #16
    GAME ON!
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    Quote Originally Posted by byrdwyngs
    Maybe, and maybe not. It depends on the alloy. Some aluminum alloys (like 6061) need heat treatment to restore strength after welding, some (like 7005) don't.

    6061 is the guilty alloy in this case
    RIP Adam Yauch

    "M.C. for what I AM and do, the A is for Adam and the lyrics; true"

  17. #17
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    The part can be rewelded and re-heat-treated. Some gusset's can be added to the area also.
    Find out where US made frames are heat treated and get them to run the repaired rear triangle. Then have it powder coated.

    My buddy has to have his rear triangle repaired by Foes and they rewelded it and then had it heat treated and powder coated.

  18. #18
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    I have emailed IH to see where to go from here....hopefully they give me some decent information.
    El Guapoooooooo

  19. #19
    Fragglepuss The Chaste
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    Quote Originally Posted by y0bailey
    I have emailed IH to see where to go from here....hopefully they give me some decent information.
    You might want to check some of the other threads on this site for a history lesson. As of right this minute, Iron Horse is no more.

  20. #20
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    Found a TIG welder in the area who builds custom motorcycles....I think he can handle the job.

    While taking apart the rear triangle I found another beauty of a crack...right side, front of chainstay. This thing is trying to make me buy a new frame. I am still going to weld her up and keep it running as a backup bike, but it is sad that it has come this far. I do ride this thing hard however, so I cannot fully complain.

    Newly discovered crack


    Older crack
    El Guapoooooooo

  21. #21
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    That is definitely a recall issue...yet now that company has folded, you really have no other options as such. And this design has been brought over to another company in many respects with a slight Giant tweek in terms of aesthetics.

    Bro, I really feel for you and the other chaps as I really would go ape-sh!t if I found flaws on my bike after casing various designs and chose one that decided to break apart under the riding conditions it was designed for.

    the custom motor bike builder, did he say that he will bake the frame after the initial welding was complete...? I mean I am sure he will though, but it may be worth mentioning it just to be sure though.

  22. #22
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    We will see tomorrow....he assured me it would not look stock, but it would be strong as hell. I trust him. Plus for $30 who cares!
    El Guapoooooooo

  23. #23
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    Do be sure though, because the weld could cause other areas to fail.

  24. #24
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    Yea....I will ask him for more information when I drop it off tomorrow.
    El Guapoooooooo

  25. #25
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    What was the result. Facing the same problem now.

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