BRAHMA Lock Buyer's Guide
In this example, the info we would ask you for is contained within "P215/65R15" from which we can calculate your wheel/tire dimensions. The "15" is the "Rim Diameter Code" expressed in inches, so this is a 15 inch wheel.
If your wheel size is 13" or 14", then you need the WL002.
If your wheel size is 15" or 16", then you need the WL001.
If you have aluminum alloy wheels, you likely need the optional Flat or "Shallow" Dish Lug Cover too.
ATV tire sizing is more straight forward, as per the diagram below;