
I bought this and have radial wheels, I adjusted them to my tire size and bought the right size for my tires. However, they don't stay on my tires. I've already lost two of them. They don't fit snugly in the smallest version of them and I followed the directions exactly. I don't have a big car and I don't have big tires. I know how to read tire size and whether they are radial or not. I got the right size for my tires and installed the ring in the tires. You just won't stay. That makes them a waste of money.