I think the best way to unfree a really stuck seatpost is the sheldon brown method.. sitting there for 2 hours with a bare hacksaw blade and cutting a line down the post til you can clamp in and remove it... I did this after waiting 6 months to try it, because I knew if I failed the bike would be a gonner. But it totally worked.. and you could see that the corrosion on the alloy was extensive and nothing could have chemically worked.
cdouble5133 karma
I think the best way to unfree a really stuck seatpost is the sheldon brown method.. sitting there for 2 hours with a bare hacksaw blade and cutting a line down the post til you can clamp in and remove it... I did this after waiting 6 months to try it, because I knew if I failed the bike would be a gonner. But it totally worked.. and you could see that the corrosion on the alloy was extensive and nothing could have chemically worked.
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