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Thread: Quick Question

  1. #1
    Flatland hack Flak's Avatar
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    Quick Question

    I posted this in the mtb forum, but thought you guys might be of help too.

    This is what Iron Horse said about the 2006 Warrior Expert frame -"DOUBLE BUTTED ALLOY HARDTAIL FRAME". Am i correct in assuming that thats a chromoly frame? Or is that aluminium? I would have thought they would have specifically said aluminium if it was?

    Whats your opinion of chromoly as opposed to 6061 aluminium by the way? I get the impression that its better despite the extra weight.

    Thanks for any info you could give me.

  2. #2
    Matthew Grimm / Flunky Kogswell's Avatar
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    Quote Originally Posted by Flak
    I posted this in the mtb forum, but thought you guys might be of help too.

    This is what Iron Horse said about the 2006 Warrior Expert frame -"DOUBLE BUTTED ALLOY HARDTAIL FRAME". Am i correct in assuming that thats a chromoly frame? Or is that aluminium? I would have thought they would have specifically said aluminium if it was?

    Whats your opinion of chromoly as opposed to 6061 aluminium by the way? I get the impression that its better despite the extra weight.

    Thanks for any info you could give me.
    Sounds like an aluminum frame to me; alloy generally means aluminum alloy.

    And in regards to the qestion of steel v. aluminum, I like to point folks to Scot Nichol's treatise on frame materials: http://www2.sjsu.edu/orgs/asmtms/artcle/articl.htm

    For those who don't know him, Scot founded Ibis Cycles and was (is?) its chief designer and builder. I say is because I've heard that he and Ibis are back. And if you don't know Ibis, get thee to Google.

  3. #3
    Flatland hack Flak's Avatar
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    Thanks for ther info

    So its probably aluminium, but not 6061?

  4. #4
    Matthew Grimm / Flunky Kogswell's Avatar
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    Quote Originally Posted by Flak
    Thanks for ther info

    So its probably aluminium, but not 6061?
    It's been a while since I looked at alu frame. But I think there's a good chance that it is 6061.

    I believe that 6061 and 7005 are the two big alloys used in frame tubes.

    Can anyone set me straight on that?

  5. #5
    Industry Maven Thylacine's Avatar
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    Chances are it's 7005 because it doesn't have to be precipitation heat treated on top of being artificially aged = cheaper and easier.
    Have you earned your stripes? <<click here / Questions about custom frames? Chat me! - warwickg71 (AIM/iChat) ThylacineCycles (Skype)

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