The pictures really not good enough for me to tell for sure, but the ridge in the middle of a couple the wheels could indicate that that is where they split like the photo that Grigg posted. The best way to tell for sure is to completely disinflate them and beat on the lock ring. If it moves, you have the Goodyear type which are fine. However, if there is any indication that they are put together like the picture that Grigg posted, get rid of them. For me it is hard to tell what you have for sure with all the dirt on them.
