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Old 12-14-10 | 09:04 AM
  #9  
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Pars
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Joined: Jan 2008
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From: Aurora, IL

Bikes: '73 Raleigh RRA, 1986 Trek 500 commuter

OA = oxalic acid. There are many threads here discussing its use and where to obtain it.

EDIT: such as this
http://www.bikeforums.net/showthread...ht=oxalic+acid

Last edited by Pars; 12-14-10 at 09:08 AM.
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