Any other reason why anyone would consider a stuck seat post a problem if its stuck at the perfect hieght for you?

Resale, and it may be a sign of rust in the seat tube, which should be addressed.

Not until you decide you have to have a fancy carbon or Ti post instead.

I have an atax post stuck in one of my peugeot psv-10's which is a seat post with a plastic clamp. I can't force the post or the clamp snaps.

Its at the correct hight, but its an imperfection. Much like a pedal stuck in a crank arm.

The longer it is stuck, the HARDER it will be to EVER get loose, unless you plan to have it buried with you, getting it broken loose WOULD be nice at some point, but NOT at the expense of damaging the frame or seat post.

For an anal old guy like me, knowing that the problem was present would drive me nuts. I build my bikes to the absolute best of my ability, resources and components availability does impact that, though. With that in mind, I could not leave a stuck post, or stem or pedal, untended.

But that is just me.

You might just ride it for a while, with the seat clamp bolt loosened off. Dribble penetrating oil, or something like that into any open crevices, and then ride the bike. With a bit of luck, and help from you butt, the post just might loosen up. Give it a try. This has worked for me in the past.

Sound like an effective dating strategy as well!

Same with me, I recently acquired a road bike with a very stuck stem, did the simple stuff to break it free, but that baby is in there. It's at the perfect height and all for me, but just knowing it isn't right drives me bats. I've been putting it off but am going to have to tackle it soon, every time I look at the bike I focus on that stem.

Yeah, I'm the same way. I will try that ^^^^ and hope it works. Thanks!

You are in quite a pickle there as you have the hard to find Atax quill wedge type post, so you should really try not to damage it. If it turns out that it is impossible to remove the post without doing so, you can also make your own expanding wedge post fron a conventional one. Do a search in the forum as there were lots of posts through the years discussing how to make one. One tip. Be sure you have one ready to replce the stuck one before you resort to sawing it into pieces to get it out as you might not be able to ride the bike for quite a while as you try to find or make a replacement.

Chombi

If your bike has any occasion to sit for any length of time, store in upside-down, and dribble a little PB down the tube to hit it from the bottom end and soak it. Having a bottle boss on the seat post makes this easy, having to remove the BB to do it...a bit more work.

I was PMed by a member that advised me to use industrial strenth ammonia, anyone else ever use this with any luck?

Ammonia's pretty nasty. People usually start out with penetrant oils like PB Blaster or Kroil before going to ammonia if the post won't budge. I also had success wirh CRC's "Freeze Off".

Chombi