Got new Conti Gatorskins 2 weeks ago. I may have put 200 miles on them. Maybe.

I go to get my bike out this morning, which I haven't ridden since Saturday and the back tire (of course) is completely flat. I was initially hoping it was a slow leak at the valve stem because this tube's valve was bent. Figured I'd fill 'er up and monitor for a slow leak. I give the wheel a spin and see a tack sticking right into the side of these new tires!!

I think it was a ~1/2 inch roofing tack (sharp as hell) that went perpendicularly through the tire and tube. The head of the tack left an imprint on the tire surface, so it may have been there a while.

Even though these new tires have a small hole in them I'm going to continue riding them. I don't think any combo of tires or liners would have stopped this tack. A word to the wise for those of you who don't carry any flat repair equipment at all.

G.D. it.