Display MoreYes, the problem is the rim size difference.
As I mentioned, this guy should have told me the rear rim would be smaller than stock. He just assured me I would "have the same tire size." That's leaving some crucial detail out....
It does tick me off, especially because I specifically told him the SLR has a WIDER rear tire than the base models, and I wanted the tire the same width. I mean duh, that would include it looking the same width when mounted....
If he knew what he was doing, he would have understood and told me that because the rear rim doesn't come in 11" as the stock one does, the tire would not look as wide.
So I just don't think this is a battle I want to wage. The wheels are on, they are custom, they happen to look great, and the only glitch is that back width.
As long as performance doesn't change or suffer, I guess I will live with it. There are other battles to fight.
your traction in the back will likely not be as good because the footprint is a bit smaller. Having said that you still have a larger footprint than a standard SL like mine which has a 255 35R 20 tire on a 9 inch rim.