Help me autopsy my bike tire. I went on a ride and then later at night I drove home with my bike on a rack. There was another bike on the rack. While driving, I heard a loud smack, as if there was an impact of something. When I get home, I take the bike off the rack and don’t see anything weird, except my bike tire is completely flat, which is weird because it was fine all ride.
For some more context; the rack has nylon straps and i’ve noticed them strangely fusing to tires. I still have no idea, only guesses, about this mechanism. It can happen as night as easily as during the day.
Also: I have no idea where this green goo is from. Perhaps lining, the tube? I had a shop replace the inner tubes last time, maybe they switched it out for sealant and didn’t tell me?