The ballooning effect of this tire is insane. It must be the softest compound tire ever to do that. It defiantly doesn’t need to be that hard because the cars weigh so little. It looked like it was ready to go at any time and it seems like it did pop at one point in the video but somehow stayed on. You defiantly don’t want to stand anywhere near this thing when it’s ballooned like that, or it will become a flying object.