XO offer Luxury wheel fitments in 19 inch, 20 inch, 21 inch, and 22 inch styles.
A load rating refers to a maximum allowable weight that a given wheel has been tested and rated at. All wheels can be rated differently, for instance the wheels on a passenger car will require a smaller load rating than the wheels on a heavier SUV. A vehicle manufacturer will give a standard GVWR (Gross Vehicle Weight Rating) to each of its vehicles. This rating is the maximum allowable weight for a fully loaded vehicle which includes passengers and extra equipment. At that point each of the wheels is tested and rated according to the GVWR of all the vehicles they were meant to be mounted on.
The offset is a vital technical aspect of your wheel and the resulting fitment on your vehicle. To better explain this, XO Luxury and TSW have put together a brief introductory video explaining offsets.
The handling can be improved by running larger wheels on your vehicle. Generally larger wheels mean that you will run a lower profile tire and usually a wider tire. The low profile tire often performs better when cornering and braking, as tire roll is greatly reduced.
Extremely large wheels are heavier and can increase braking distances. However, XO Luxury will always endeavor to keep the wheels as light as possible without compromising the strength of the wheel.
The XO Athens has a 4.5 inch lip.