The wheel load rating is a measurement, usually in pounds, of the vehicle’s heaviest gross axle weight (how much weight the axle can support), divided by 2 (representing how it is spread across the two wheels). When you buy a wheel, check the wheel load rating to make sure it matches both your car’s needs and what you use it for. For people using their Gladiator as a simple city run-around car, this won’t be as relevant to you as those using it for regularly transporting heavy objects.