Warning: Contains description of cyclist riding on stupidly old tires. May not be suitable for safety concious readers.

I had a flat on my work commute this morning. I already suspected the Schwinn Passage tires were original to the bike, so 36 years old . Even more surprising was when I removed the tube it was marked in big red letters "Schwinn approved," and had what appears to be a molded in date code of N86. I've owned the bike two or three years and only started riding it this Spring, commuting sporadically. I guess the original owner either didn't ride it much or he was really, really lucky. Oddly, the flat wasn't caused by a puncture but rather a failed valve. I purchased new Paselas a while back. Just haven't gotten around to putting them on yet.