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  1. #1
    Bottecchia fan
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    What's your opinion of this crack?

    Hi All - there is a small crack in the upper head tube lug as you can see in the pictures. It is only in the lug, not the head tube itself. How serious do you think it is? Cosmetic or fatal? Should it be repaired? If so how would go about it? Thanks for the input.




  2. #2
    Randomhead
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    could you tell us more about the bike? Was the lug thinned down by the original builder, or is that a later modification? It's a little hard to make a judgment about the crack since there is a lot of crud on the lug. Does the crack extend to the top tube area of the lug?

    I'm assuming that is a pressed steel lug, and that is the weld. Not sure what to tell you about fixing it.

  3. #3
    Senior Member Nessism's Avatar
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    Looks like lots of paint inside the head tube. I wonder if the head tube was properly machined for size before someone hammered in the head set cups?

    I suspect the crack will be ok for a while but will likely grow over time. Before stuffing a new head set cup in the frame I'd get it properly cut by a shop or framebuilder.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

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  4. #4
    Bottecchia fan
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    Quote Originally Posted by unterhausen View Post
    could you tell us more about the bike? Was the lug thinned down by the original builder, or is that a later modification? It's a little hard to make a judgment about the crack since there is a lot of crud on the lug. Does the crack extend to the top tube area of the lug?

    I'm assuming that is a pressed steel lug, and that is the weld. Not sure what to tell you about fixing it.
    The frame is a factory '67 Bottecchia Professional. I doubt there have been any later modifications but it may well have been repainted. The crack is only on the vertical part of the lug along the head tube and does not appear to extend into the top tube nor into the head tube itself. I believe it is a stamped steel lug and brass brazed construction. I can clean it up if that helps.
    1959 Bottecchia Professional (frame), 1966 Bottecchia Professional, 1971 Bottecchia Professional (frame),
    1973 Bottecchia Gran Turismo, 1974 Bottecchia Special, 1977 Bottecchia Special (frame),
    1974 Peugeot UO-8, 1988 Panasonic PT-3500, 2002 Bianchi Veloce, 2004 Bianchi Pista

  5. #5
    Bottecchia fan
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    Ok, I cleaned up it up a bit. Anybody have any other ideas?



    1959 Bottecchia Professional (frame), 1966 Bottecchia Professional, 1971 Bottecchia Professional (frame),
    1973 Bottecchia Gran Turismo, 1974 Bottecchia Special, 1977 Bottecchia Special (frame),
    1974 Peugeot UO-8, 1988 Panasonic PT-3500, 2002 Bianchi Veloce, 2004 Bianchi Pista

  6. #6
    Senior Member Nessism's Avatar
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    Frame looks safe to ride but that crack will likely grow. If it gets down to the junction of the top tube, I'd stop riding it.

    To repair it now, you could grind the crack out, be careful to not cut into the head tube, and fill with brass. Dress the repair down with a file and touch up the paint. Chrome on the lug will be lost but frame should be sound after that.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

    Good/Bad Trader Listing

  7. #7
    Bottecchia fan
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    Quote Originally Posted by Nessism View Post
    Frame looks safe to ride but that crack will likely grow. If it gets down to the junction of the top tube, I'd stop riding it.

    To repair it now, you could grind the crack out, be careful to not cut into the head tube, and fill with brass. Dress the repair down with a file and touch up the paint. Chrome on the lug will be lost but frame should be sound after that.
    Thanks, that's pretty much what a local frame builder that I brought it to told me. I just wanted to get a second opinion to be sure. Since this frame is not built yet and needs to be painted I will probably have it repaired. I have another bike with a nearly identical crack but that one is a bit more problematic since it still has its original paint/decals and all.
    1959 Bottecchia Professional (frame), 1966 Bottecchia Professional, 1971 Bottecchia Professional (frame),
    1973 Bottecchia Gran Turismo, 1974 Bottecchia Special, 1977 Bottecchia Special (frame),
    1974 Peugeot UO-8, 1988 Panasonic PT-3500, 2002 Bianchi Veloce, 2004 Bianchi Pista

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