I was just changing my tires around (back to semi-slicks from knobbies), when I noticed a small tear inside one of my tires. It looks almost like a cut from a knife, but I can't think of what would have sliced it. It only goes about half-way through the rubber and is barely noticeable unless I push the tire from behind. I've attached a photo so you can see what it looks like.
Is this tire still safe to ride on? I would hate to have to buy a new one, they weren't cheap and are only a few months old.