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  1. #1
    Senior Member cnnrmccloskey's Avatar
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    Front end impact damage looking for advice

    I recently received an older road frame (been repainted too many times to tell what it is) which I assume was a somewhat quality frame as there was a campy NR group on it before I got it. When I went to tear it down for an overhaul I noticed bulges in the top and down tubes where they meet the head tube. I'm looking for some advice as to if the frame is ridable and if any failure would pose a danger to the rider (who will be ~130lb)
    I sanded down the area around the deformations and took pictures (low quality I must appologize I'll try and pick up batteries for my camera soon)
    underside of the Down tube

    side view of the top tube

    top view of the top tube

    that last one is probably useless I again appologize, any advice is greatly appreciated, I can take more of the paint off too if that will help
    Quote Originally Posted by Braden1550 View Post
    Monocoque unicycles with internal gear hubs, ridden by extortionists with an excellent sense of balance.

    You'll see. Unless you drilled out your eyes because they were too heavy.

  2. #2
    Framebuilder
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    Yes, the frame is severly compromised, and yes, it will break. When is anybody's guess.
    These threads always have answers that range from "junk it now" to "ride it till it starts to crack".
    It comes down to how you feel about putting that 130 pound rider at risk.

  3. #3
    Senior Member GrayJay's Avatar
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    The frame is unlikely to just sudden break in two without warning and cause a catastrophic accident. More likely would start as a small crack of one of the effected tubes and gradually progress.
    Not a good idea to put someone on it with little knowledge of bikes but it would probably be OK for an experienced rider who knew to routinely check for cracks and was aware enough to notice if it suddenly started handling funny.

  4. #4
    coprolite fietsbob's Avatar
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    You may not want to tear it all down clean and braze band-aide of more tube from a dead frame


    over the weak spots, since there are oodles of 2nd hand bikes chaingeing hands in portland

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