I actually ordered a set of centercaps from your wheels to replace my old school SSR ones that I didn't really like. They didn't fit. I had the 'Z-stuff' pile with the emblem on top of the wheel. I moved it toward the center and it basically clicked in. I popped out the centercap and found that it was a plastic emblem glued to a steel backing. I pried the old SSR emblem off and cleaned off the glue. The nose emblem has double sided tape already on it so it was a matter of just peel and stick. There might have been a little locator nub I had to shave down. I don't really remember, this was like 6-7 years ago.