Originally Posted by Live2Die

Do you mean moving rear to front and vice-versa? Or do you mean on the rim to preserve skid patches? If you mean on the rim just take it off and move your chain up a tooth or two on your cog, that will do the same thing. I don't see any cons to it. but if you are flattening out a rear tire I prefer to just replace the rear as it goes out and leave the front as long as it will last.