I run 265/50/20 on Verde Parallax wheels, 20x9, 20mm offset. They BARELY clear, no spacers. Actually had to take a flap disc on a side grinder to eliminate the tire rubbing on the hardware that sits above the front tire, forget what it's actually called. I'll see if I can get a pic uploaded.
https://photos.app.goo.gl/g1GTpfDjUmLzfA4q7