I'v had them on my car for about 4 years now. They sweek and the car rides rougher the h*ll. The other day I was going around a nice tight corner (something I like to do with my 36mm and 1 3/8 ATR bars) and there were a few small bumps in the curve. I've never noticed the bumps before in my truck or my girlfriends neon but in my buick it started doing a bounce/wabble thing and i'm getting sick of it. Has anyone used the polygraphite bushings how well do those work? I'm thinking of going back to rubber bushings just so the car will ride better. Does anyone have some ideas. Thanks