^^^^^^^^ BC, excellent points, all of them! I had a rear (pinch) flat surface on the transit to the last stage at BRS this past September. It was pouring, I mean pouring rain, yet all of my biker compatriots chipped in with zip ties and help to keep that tire on during the stage and then the 20+ mile transit back to service and final time check. I was lucky this happened on the last stage and my rally did not end right then and there, which would have been a major bummer as I drove a few hours just to compete. To say I was relieved to make it back was an understatement. I've never used a mousse but had I had them in, this would have been a non issue. I did have a spare set of wheels at camp. Mousse in your hair and in your tires is fine by me.