Joined: Sep 2009
Posts: 4,697
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Bikes: Masi, Giant TCR, Eisentraut (retired), Jamis Aurora Elite, Zullo, Cannondale, 84 & 93 Stumpjumpers, Waterford, Tern D8, Bianchi, Gunner Roadie, Serotta, Serotta Duette, was gifted a Diamond Back
as for the corrosion, do a search stuck stems or stuck seatposts its a common thread in the mechanics forum and there are a lot of suggestions. but WD40 isn't normally one of them.