The only seat post I attempted to cut out was on a newer Wally World Schwinn that I started to rehab before checking it ( learned my lesson that day ) & it had a post big enough that I could use my sawzall. My blade was longer than the post was deep so I didn't think it would be that hard, well I found out what a inexorably, galvanically-welded stuck seat post is. I cut it into four cross sections & it still wouldn't budge even after I cut through the frame in each section, it wouldn't come out as it really was welded to the steel. I had to give up as the frame was now shot and switch all the parts over to another. I have two more frames that I can't ruin with stuck post that I have put off as I would really like to save the post also.

Glenn