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  1. #1
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    Extra long butted tubes?

    Hello! I'm curious to know if anyone knows of a source for extra long butted tubes. I'm getting ready to build a frame and I've determined that I need a downtube about 810mm long (yeah, I'm really dang tall, hence why I want to build my own frames). The longest I've been able to find from the tube suppliers I'm aware of is 750mm.

    I guess I assumed that with the bevy of extra long mountain bikes these days, longer tubes would be more available. Should I just use a piece of straight gauge?

    Thanks for your help.

  2. #2
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    vari-wall makes a couple 850mm tubes in their thermlx line. They have a 34.9, 38.1, and 44.5. 44.5 is a super large downtube, i'm curious where that tube would be appropriate. Tandems? I'm sure there's more alternatives but i don't know what they are. I don't envy your height!
    "Things that are complex are not useful, Things that are useful are simple."
    Mikhail Kalashnikov

  3. #3
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    Cool, that's really helpful, I didn't know about Vari-Wall. Thanks.

  4. #4
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    Yes, Vari-Wall is where you want to go.

    The 44.5 is something I've used before, actually, for single bikes. There are former NFL lineman and such who have horrible knees and get told they can swim, or ride a bike - or die at 50. Most of them pick the bike but they're often like 6'9" and 300+ pounds and VERY strong as well, so that downtube is actually totally appropriate.

    -Walt

  5. #5
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    Hey Walt you ever run this through your bender I'm curious how it would roll
    PAYASO 36er.....Live the Circus

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    I'm sorry what part of "BIGLY" didn't you understand?

  6. #6
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    Quote Originally Posted by todwil View Post
    Hey Walt you ever run this through your bender I'm curious how it would roll
    Hahahaha! You could spend all day on a 44.5mm tube and barely make it move. Tubes roughly double in stiffness every time you increase diameter by 10%...

    You need big hydraulic tools and/or bending hot if you're trying to bend those tubes. Good luck!

    -Walt

  7. #7
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    Quote Originally Posted by Walt View Post
    Yes, Vari-Wall is where you want to go.

    The 44.5 is something I've used before, actually, for single bikes.

    -Walt
    I was lurking your blog and found this

    A tale of two bikes


    Wow that thing is beefcake. That downtube totally makes sense. I hope you don't mind my sharing it.
    "Things that are complex are not useful, Things that are useful are simple."
    Mikhail Kalashnikov

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