puncture

Hey again, sorry if it seems like I'm hogging the forum. I'll try not to have any further concerns with my max, lol. So low and behold I spotted this on my rear tire. New tire? Or a plug will work ok? I'm kind of paranoid about the idea of a rear tire disintegrating from under me...

Had to go for a quick trip to the post office yesterday. Sat on the bike and wondered why I had grown an extra couple of inches and the rear shocks were so stiff and unwelcoming. My new Pirelli was as flat as a tack. The culprit was a thin sliver of metal that looked like an off cut from a...