Originally Posted by
pdlamb
That assumption, that you can find the penetration point, bites me in the a$$ about 90% of the time. Broken glass shards look an awful lot like harmless limestone chips outside the tire. Michelin wires are almost invisible. But for the other 5-10%, the logging staple, the sheet metal screw, the big nail, that tip can work great.
I know I can find the puncture in the tire about 75 to 80% of the time, I'm not talking about nails either, but small holes like from wires, or glass, etc, with practice you can find the hole, and if you're not sure if something is just harmless limestone as you said, simply remove it and check the tire then you'll know if it's harmless or not.