My friend has a great old classic black city bike in great condition, but can't ride it comfortably because the seat is too high so I tried to unstick it.... I tried prying the top of the seat tube open with a screwdriver (where the seatpost bolt is located), and then I managed to bang a screwdriver all around the seat post, a few mm deep. Then I sprayed WD40 liberally into all the cracks and openings that I could. Yet despite thinking i made progress, I still couldn't get the #"$° post to budge, even forcing it to turn hard as I could with pliers. The seatpost is obviously stuck by corrosion, as I could not remove the seat either, on account of the seatpost bolt fixed by rust. I did however manage to break the seat off, unwittingly, by trying to bang on the side of the seatpost with a hammer (I caused a crack at the top of the seatpost). So now i have a bike with a seatpost that won't budge, and a seat that moves too much. IOW, the bike is completely unuseable, at present.
The seatpost is just a tube, there,s no built-in clamp. Does this mean curtains for this classic bike, or is there a way to save it? If its impossible to get the seatpost out of the seat tube, what if I get someone to saw off the seatpost at the top of the seat tube... is there a seatpost made that is narrow enough to fit inside another seatpost which is inside the seat tube?