Tallest tire on 20's
 

I just want to know the tallest tire that can fit on a stock 525i with no suspension upgrades? I was wondering if a 40x20 would work on the front and a 35x20 on the rear?

That's some tall sidewalls unless your going with skinny wheels. What tire size are you going to be running on the car?

I appreciate it. I will go with the 35 up front and the 30 in the rear as the specs call for. I was just curious if anyone had tried and bigger tire for comfort. Thanks as always and looking forward to being in the e60 for a long time like my e34.