The rings have been on since I got the wheels, probably the same yellow plastic ones you have. They fit the hub and wheel tightly and evenly, so hopefully they are on straight. I'm guessing the little bit of shake that is left is just a combination of the imperfections on the wheels, tires, ect. I'm fairly happy now. Before it felt like it was going to shake the suspension apart and now it is so minor that it blends in with the road imperfections.