Peace and bicycle grease!
Join Date: Apr 2008
Location: The Island, CA
Posts: 285
Bikes: '85 Schwinn Voyageur, Ross Mt Hood, Rossin, the Nugget
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i once had that prob with an al seatpost in a steel frame. i tried everything, to no avail, until i poured ammonia up the seattube and was able to twist the sp out without too much difficulty. ammonia apparently disolves aluminium oxide, so you may want to try that, as long as it doesn't react with the epoxy of you cf frame...