Ok, so my seatpost has become stuck. Aluminium seatpost, steel frame. I'm fairly surprised, as the bike has been stored inside, I last changed the saddle height about a month ago and the post had been previously greased.
Either way it's definitely stuck now! So far I've tried completely removing the seat collar, spraying a load of oil and WD40 at the top of the seat tube. I've tried twisting with as much force as I can manage and taking the saddle off and tapping it downwards with a hammer. Doesn't seem to be going anywhere
I've read all the stuff on the Sheldon Brown site and all over various forums but wondering what the most successful techniques have been for people on here. Feels like there should be a few other things I can try before I start messing about with amonia.
Any advice would be much appreciated!