I had an old fluted seatpost stuck so tight the bike shop said it was permanent. Took the bike into the farm shop and a bigger vise and we got it, but it took some serious beating, extender handles, and 2 stromg guys working on it. As luck would have it it was a 1980s steel framed MTB. Wouldn't want to try that on an aluminum or CF frame bike.
BB
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Formerly fastest rider in the grupetto, currently slowest guy in the peloton
