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  1. #1
    Great guy poululla's Avatar
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    This picture is of the underside of my father's De Rosa Planet downtube. What is it, and should he be worried? The bike has never been in a crash, if that helps. Comments are as always very welcome

  2. #2
    MaNiC! NZLcyclist's Avatar
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    uhhhh is it steel? that looks like rust under the paint......
    Scott Speedster S30
    Shimano 105 Shifters and Derailleurs
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  3. #3
    Great guy poululla's Avatar
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    Quote Originally Posted by NZLcyclist
    uhhhh is it steel? that looks like rust under the paint......

    A De Rosa Planet is an aluminium bike if you cared to check. If this is indeed a form of oxidation, is the integrity of the frame affected at all ?- only serious answers please. Watch the Boks beat the pants of the All Blacks this weekend
    Last edited by poululla; 07-21-04 at 02:29 AM.

  4. #4
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    Quote Originally Posted by poululla
    A De Rosa Planet is an aluminium bike if you cared to check. If this is indeed a form of oxidation, is the integrity of the frame affected at all ?- only serious answers please. Watch the Boks beat the pants of the All Blacks this weekend
    You are looking at aluminum oxide powder under the paint. Lots of al frames get this around the braze-ons and other spots where moisture can get under the paint. There is no structual problem, just a bad skin condition.

  5. #5
    Great guy poululla's Avatar
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    Thanks for your reply Pucci, we thought along the same lines, but now we are sure. You were a great help.

  6. #6
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    RuA Bok fan. Not only am I a Bok fan and supporter I am a Blue Bull supporter as well!!!!

    Big H
    The Big H rides:
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    el rapido road tandem
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