If you get a tear in the sidewall of a tire, your tube might be beyond patching as well. To save your ride (this isn’t a permanent solution) use a knife or scissors to cut the punctured tube, into a piece large enough to patch the sidewall. Glue the piece of tube over the hole on the inside of the tire. If you’re not carrying glue, place the patch over the hole and let the new tube press it in place. In the case of a very big hole use several layers of inner tube. Now carefully ride to your destination or a repair shop.