just alittle FYI~
1.some company pancake parts "wheels center" can not make offset that low.
2.some company lip inner and outer can not make 20x9.5-20x11
3.casue most of these forged wheels company get all the parts from so many driffrent place to put them together.and some time.
4.once you really see behide of some of the way wheels are made you may think agian.
here is
20x9.5+20x10.5 with 275-30-20 front+285-30-20 rear and yes i can run 305-25-20 or 305-30-20 in the rear!
i got to say i'm was the first to run 305's in the rear to show this size more them a year ago.
pm me if anything!
305-25-20