Originally posted by FourthGenHatch
My brother got one in its tire, I saw them do it. If I remember it was green and a tire is obviously black. I haven't looked at it but I would assume you would at least see a green spec on the tire surface.
hmm, the one they used on my old tires was black. so lets just say for the sake of argument that they used a black one, would you be able to point it out on a tire, even if it was on a part of the tread that was smooth?