Some of them don't have a notch. They have 2 gaps opposite of each other in the seating edge where you can pry them up. Once you knock the tire down, but will be able to see what I am talking about. After you pry the ring up, hit it with a hammer almost skimming the tire. It will jump off. I don't really like this kind of wheel. They are not as bad as the Firestone widow makers, but they are certainly not as good as other lock rings. I would sure put it in a cage during inflation. Our workers comp would have a fit if they saw me doing it, but I like to tap the lock ring when I am inflating it. The lock ring seats better.
