Currently, 17-inch-diameter wheels have the most wheel and tire options and will fit over most brake packages. We typically like the wheel diameter to be less than half the overall tire diameter.

For example, if the original stock tire size is 215/65R17 and you buy 18-inch wheels, the right tire size for the larger rims might be 225/55R18, with the differences being the larger-diameter ...

Many drivers give little thought to the sizes of their wheels and tires except for cosmetic purposes. ... this number is 15, which means the tire fits a wheel with a 15-inch diameter. More Tips.