Originally Posted by
rpenmanparker
When you use up a rear and move the front there, it is nearly pristine. There is no aesthetic downside. Rotating like you do only makes sense if you are trying to use up both tires at exactly the same time, perhaps so you can replace them both with a different brand/model/color/etc.
I'm not understanding what you are saying. I wouldn't ever want to "use up" a rear tire then put it up front.
This is exactly why I rotate when I do...have them be worn out (or close enough) at the same time. I have no scientific reason why I rotate the rear up front when I do, but I'd be a little sketched out if the front was really flat. Even if it does not affect the performance in any way, I feel better when I rotate the tire up front and it still looks newish.