DrZaius7

Hello gents, just took delivery of my new IS last week and have decided to use the stock wheels for my snow tires which I just ordered. I want to get either 18" or 19" wheels for the summer with high performance tires.

As I search for wheels I am disappointed to find that the recommended tire width for even the larger wheels is 225. I was hoping to get 245's on there but am not sure now that will work.

Is there anyway to plus size the tires on the 8.5" wide wheels without screwing up the speedometer?

Thanks