I'm having one of those "calm down, take deep steady breaths" moments right now and could use some advice.
I used a Park ICS-4 internal seat clamp to secure my Kuota Khan carbon fiber bike on a Park stand. Basically, this is a device that goes down the seat-tube and has and end that expands until it grips the inside of the tube. Since the bike was moving around on the stand, I probably overtightened it. Now, when I want to remove it, the internal expansion parts do not seem to loosen up at all. I unscrewed the knob to the point where it came off the shaft, but no amount of pulling is getting this thing to budge.
Right now, I'm going to take a break and think about it, but any advice would be welcomed.