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Join Date: Feb 2006
Location: Sin City, Nevada
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Bikes: Catrike 700, Greenspeed GTO trike, , Linear LWB recumbent, Haluzak Horizon SWB recumbent, Balance 450 MTB, Cannondale SM800 Beast of the East
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The answer is no, a dilute vinegar solution will not hurt your bike frame. Remember you can drink the stuff right out of the bottle and not even get a stomach ache. It is an acid but a very weak one. It also evaporates easily so there will be nothing left once the smell is gone. And yes, I am a chemist. This holds true for the 3% variety you buy in the grocery store. Just don't try drinking the 30% concentrated acetic acid found in a lab.