I had to check my wheel and tire pile. I have a pair of Wolber Invulnerables that have never been installed but I've stretched them out and put them on rims with no glue or tape. However, when I removed these from the package last summer each of the tires had a small crack in the tread that ran from side to side right at one of the inner folds in the package where neither seller nor buyer could see until the tire was actually removed. If you think you could use them, we can work something out. I thought about trying to fill/patch them with latex sidewall restorative but haven't messed with them yet.