Upgrading to 20" Wheels / Offset Question
I have a 14 Laredo with 17's and am going to get summer wheels/tires. I want 20's and I want them to be wide enough to at minimum be even with the outside edge of the fender, a few millimeters wider would be OK to. My research has shown, if I'm correct, the offset number will depend on the width of the rim. Is there and easy way to figure this out? If I get a 20/9 rim, what should the offset be?