Lots of reasons stupid, like a warped liner that sags in the spot it rubs, bad shock/struts. Get real and get some experience before you cry about stupid shlt like this.
All I gotta say is its bull:q:q:q:q that you people say you don't do anything wrong to cause rub!
The guy that owns the wheels admits to not rubbing and so did others. Look into it a bit more, I know people personally as well as other forums that make the car just by putting wheels on it and they will tell you the same thing, YOUR A FUQING IDIOT IF YOU SAY YOU DON'T DO ANYTHING TO CAUSE IT TO RUB!
Really? Cause you know everything right? My luffs were 20x fuqing 10, I had them a long time ago and had them all the way around eventually I got sick of so much poke with out tucking them in. Now I got the Carlton's, 20x9 the rim sits flush with the fender and I don't have my car lowered at this point. So tell me why it would be bullll:q:q:q:qtt that my wheels don't rub. If the damn car was lowered it would rub! But its not so get fuqing over it and realize they wont rub for the simple fact that its not a lowered car we are talking about in most of these cases.
Am just wondering did you say you had 20x10 all around, thats sounds really unlikely but you never know am just wondering because i have 20x10 in the rear with modifactions and the perfect offset and it still rubs if i hit big uneven roads.