Flat at the track
To make a story short, after a run, noticed I had a flat on my ET Street rear passenger.
Upon taking it off, I couldn't see any penetration or pertrusion by any nail glass etc...
I went to the pump to try to pump it up to check for leaks, and I was unnable to inflate it. Tried on another tire and it worked so not pump issue.
Is it possible that the valve blew internally?? or something related to that?

