I got a flat just now. I was airing up my tires to get my bike ready for an inaugural ride of a new bike trail tomorrow morning and as I was walking away from the bike, I hear this "ssssssssss". I turn and my back tire is flat. Must be a seam leak.
I'm tired from work, so I'll take one of my spare bikes tomorrow and change out the tube later.
Ernest

PS: Guess that makes 3 flats in a year and a half time.