Interesting to read all of the stories here. Living in Maine, I spend a lot of time on a trainer and have been riding one since the 80's. WE also offer a trainer class in the shop, so lots of trainer time for sure. I always just use an old tire, and at times, have had to swap to another 'old' tire. But have never seen tubes explode, although anything is possible I guess. Have a good indoor season everyone!