Recently got a clincher flat, pulled the tube, it looked like a pinch flat(sorry Tom!). Checked the tire for evidence (newish 130 miles on it) - nothing, still looks new.
Looked at the Ksyrium rim and in the base ( the U shaped groove the tire fits into) I see a hole similar size to a spoke depression. But of course the Ksyrium spokes are attached to the deep rim and are nowhere near the base. Furthermore the hole is between spokes. So it’s a hole, little rough, not completely circular) going from the base into the deep rim. I actually first saw it when I was putting a new tube in and mistook it for the valve hole(it’s bigger !).
I can’t think of anything that could have caused this from the outside without completely demolishing the tire, and the wheel too. There’s nothing rattling around in the rim. It looks like a bullet hole, but I’ve never set foot in Texas !
Any ideas ?
My guess is a manufacturing error which was possibly covered up with tape, which has now come off. I’ve applied 2 or 3 layers of duct tape, so far so good.