Originally Posted by jag6780

My first commuter flat was from glass on the Greenway here in NYC. In fact the path squeezes to only a few feet wide at one point and it was littered with glass that morning.

I never ride too close to the curb. I think this morning's flat was from riding through the perpetually dirty streets of the Bronx (the first 3 miles of my route). I spend that whole time dodging bottles, broken glass, etc. I am sure i hit the glass today while passing a garbage truck - it may have come from them...