My bad, I probably should have said wind restrictor. This site seems to have all the answers. I guess that is what's so nice about asking questions. If your skin is a little thin then probably not the place to look for opinions. I did throw on a couple of lighted valve stems just for kicks. I had to laugh, we went in for ice cream at Culvers this summer and I left them flashing... People were driving by trying to figure out what they were.. ha ha Probably thought they were some high test security system.. ha ha