Originally Posted by mexican
It was a leak, i rode 12 miles and stopped to see a friend, was inside for 20 minutes, when i went back out the tire was completly flat!
It would be great to find that liner and get some extra insurance!
One thing you can do that doesn't cost anything is, take the old inner tube, and cut the valve stem out, and then cut around the inside circumference of the tube.
Take the new tube and place it inside the old tube, so you end up with double thickness. That helps a lot.