bent seat tube dimension suggestions- Mtbr.com
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  1. #1
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    bent seat tube dimension suggestions

    I am going to have some tubes bent. They will be 24" long overall. I am doing two at a 6.75" CLR and two at a 9" CLR. I'm hoping to see what people are doing are would suggest for the length of the straight section before the bend starts. And since we are in to this discussion, what is a good degree of bend to go with? Thoughts?

    Thanks, Wil

  2. #2
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    Before you go do that, there are already (assuming you want to fit a dropper) 3 options available commercially:
    -Vari-Wall
    -PVD (still available I believe)
    -Waltworks

    -Walt

  3. #3
    pvd
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    I may do another run in the future. Not many people were interested the last time which was discouraging. Tooling is all paid for now and that was the tough nut.

    For mountain bikes and folks under 6' tall, you need to get the bend as low as possible in the frame. Thus, I use a 30 degree bend at 3.0" CLR.

    PVD Blackbird Seat Tube OEM Order | Peter Verdone Designs


  4. #4
    pvd
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    The info on this post is good if you are talking about bent seat tubes.

    The right way to build and spec bent seat tubes | Peter Verdone Designs


  5. #5
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    Framebuilder Supply has "29er" bent seat tubes, externally butted, for 27.2 internal diameter.
    https://framebuildersupply.com/colle...1-2-length-550

  6. #6
    pvd
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    We don't build with 27.2mm tubes anymore.

  7. #7
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    Quote Originally Posted by pvd View Post
    Not many people were interested the last time which was discouraging.
    That's really disappointing to hear.
    "Things that are complex are not useful, Things that are useful are simple."
    Mikhail Kalashnikov

  8. #8
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    Quote Originally Posted by scottzg View Post
    That's really disappointing to hear.
    That's odd, too. I've sold probably 50 of mine (and used another 25 myself).

    Might be the sales model. A lot of people don't like the preorder/crowdfunded thing. I just generally have a few hundred of whatever I want made (ie fork blades, seat tubes, etc) and figure if nobody wants to buy them that's fine. I'll use them eventually.

    -Walt

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