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.