I did some searching (here and in google) about two-piece drift tires but couldn't find specifically what I was looking for. I got some two piece drift tires and after installing, I don't see how the tire will stay together. I put the inner flexible piece on from the back of the rim (with the inner piece's raised lip on the outside of the rim) then slid the tire on. Problem is, it slides on very easy, which means it'll slide off very easy and the inner piece will also probably spin inside the tire once it gets dirt from the road on it. So the question is, how do you keep the outer tire from slipping off the inner ring and how to keep the inner ring from just spinning inside the tire? besides the ribs that keep the inner ring itself on the rim, the rest of is is glossy smooth, as is the inside of the tire. Is there some accessory I'm missing here?

I had to take out my link because there are no ebay links allowed for some reason. Auction number removed by mods. Sorry.