Rotate a Perforated Tube
If you damage a tire casing while cycling, it can perforate your tube and you won't even know it. It can happen when you hit sharp objects, such as rocks. Small wires from the casing can separate on the inside of your tire and come into contact with the tube. The wires perforate the tube and you get a flat. You can continue to use the tire if you boot it and rotate the tube.
Instructions
1
Remove the wheel from the bike. Let the air out of the tire if it still has air in it. Insert a tire lever into one side of the tire and run it around the perimeter of the tire to break one side of the tire loose from the rim. Don't take the tire off.
2
Insert two of your fingers between the tube and the tire. Slide your fingertips around the inside of the tire until you find the rough spot where the casing has separated. It will feel like small wires instead of rubber. Make a mark on the side of the tire with a black marker where the rough spot is.
3
Pull the tube out of the tire. Blow air into it with a pump. Find the hole where it was perforated and patch it. Flip the tube over and rotate it so that the perforated spot on the tube is on the opposite side of the tire from the mark that you made. Insert it back into the tire.
4
Insert a nylon tire boot between the tube and the tire casing on the inside of the tube. Insert it under the mark on the tire. Position it between the tube and the tire under the rough spot where the casing wires are exposed.
5
Use your thumbs to pop the side of the tire back into the rim. Blow the tire back up and put it back on the bike.
