Finally got my winter wheel/tires on - odd rub?

I put my new Ultra Hunter wheels on (18x9) with General Grabber AT2s (275-65-18). I have had 2-3 sets of Grabbers and love them. It's my first time with none stock rims. Like the "meaner" look.

Was a bit surprised how much the tires sit outside the fender wells. Close to a inch. Looks good but bit worried about rocks kicking up onto paint (grabbers will pick up/throw stones). Also was happy to hear a wheel rub (fron, passenger side). Only happens when I cranked it left and backed up in driveway. Not too worried, but was curious.

 

It's either rubbing on the front or rear mudflap. I'm betting front first. Just remove it.

 

Yup, rubbing (barely) on the small forward front flap. Took it off - no rub.