Originally Posted by Rob_E

I also have an S & S coupled bike. I deflated the tires and then tightened the valves back up. The bike traveled fine, there was no mess, and the tires reinflated easily at the other end. I had considered the option of removing as much sealant as possible and replacing it at the other end. But I posed this problem on the mountain bike forums, where they had more tubeless experience, and most people agreed that a tire that already had the beads seated and was already sealed up was unlikely to have a problem, so I risked it and didn't have any issues. I have only done this once, however. The other flights this bike made were when I was still running tubes.