TR4A was exactly correct in his post!!
Another note, the chap that said the tires don't get too cold at altitude probably didn't take in to consideration, that during landing and applying brakes, the tires heat back up!!. .Big chunks of ice can form inside a tire if the moisture content is too high and that takes a lot of heat energy to melt after landing and, during rollout before the tires have warmed up, this could indeed cause a serious imbalance!