So yesterday I threw out an old used tube figuring I’d get a new spare one shortly down the road The next day my new heavy duty tube catches a nail on the maclaren river trail. No prob I’ll just pull that out and patch it up. Well the wretched nail somehow made 2 large gashes that barely fit under my last 2 large patches. It seemed to hold air just long enough to get the wheel back on the bike. Both times! I carried that tube from the atlantic to the pacific and arctic oceans just to keep Murphy’s law at bay!