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And that's what I did. I realized that, unlike a run-of-the-mill puncture from a nail, this one had actually severed tire cords, and recognized that the tire had, literally, been torn by the bolt.
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...Stepped On A Pop-Top...

a-mile-and-a-half into a ten-mile loop (going east on 10th Ave North, just after the intersection with Haverhill Road).
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