Originally Posted by
T-Mar
I had a couple cases where cutting the post and hacksawing a couple of slits did not work. The posts were literally fused to the seat tubes. I ended up using a reamer. It 's a tedious job that I wouldn't repeat unless it was a very good frame and/or I was being handsomely compensated.
If the post is alloy and not too thick walled, to cut it 2 cm or so over the frame and using a reamer is the way to go IMO.