Originally Posted by
speedy25
That says it all.

Even though your pic is small, I think the problem is one related to quality and NOT something you did or ran over.
-SP
You might have read the text before deciding that a tire magically had two punctures simply by virtue of being below your elitist threshold for tire quality.
There were two plausible explanations for likely cause, and we didn't have to indict the tire by brand. Cheng Shin tires aren't the lightest out there, but have a very long history of holding up fine until worn out or damaged by a road hazard.