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Thread: Spotty weld

  1. #1
    Senior Member
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    Spotty weld

    Are these two "air" holes in the weld something I should be concerned about? Thanks.


  2. #2
    Senior Member ChrisM2097's Avatar
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    I'm no welder, but that bead looks horrible.
    Chris
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  3. #3
    Senior Member mudboy's Avatar
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    Worry about? No (but Frank might be along to correct me). But certainly not something I would want on a frame.
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  4. #4
    Randomhead
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    Is that a production frame?

    there are lots of bikes out there with pits like that. That's a pretty ugly bead though.

    You will occasionally see a crack from something like that, but usually because the penetration is bad on the whole weld.

  5. #5
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    Thanks for the replies. Yes, it is a production Schwinn Madison and obviously came this way from the factory as it was like this when I got it (about a month ago). I certainly don't want a future crack - what can I do to prevent that? FWIW, it is a 4130 frame and if the picture isn't clear it is at the top tube / seat tube connection.

  6. #6
    Randomhead
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    I think that mountain bikes are much more likely to have seat cluster cracking problems than a road/track bike. I think you'll be fine. Is that the worst looking weld?

  7. #7
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    Quote Originally Posted by unterhausen View Post
    I think that mountain bikes are much more likely to have seat cluster cracking problems than a road/track bike. I think you'll be fine. Is that the worst looking weld?
    Thanks. It is. I looked over the rest of the welds are they all look ok.

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