Old 01-11-19, 06:14 PM
  #10  
machinist42
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Bikes: 1972 Falcon San Remo, 1974 Maserati MT-1, 1974 Raleigh International, 1984 Lotus Odyssey, 198? Rossin Ghibli, 1990 LeMond Le Vanquer (sic), 1991 Specialized Allez Transition Pro.

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Let's Get Technical?

Originally Posted by merziac View Post
Search "rust worms under bicycle paint" or some such.
Filiform corrosion aka "filamentary corrosion" or "underfilm corrosion".

I politely beg to differ with the dire prognosis suggested previously, as I've generally found filiform corrosion to be readily checkable with an acid bath, I prefer phosphoric. though I suppose oxalic would work. In my experience filiform has been superficial. I'm not saying it can't erupt from within the tube, but I haven't seen that often. Mostly it's sweat spawned.
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