What is the size of the Crown wheel hub?
2 Answers
The Crown wheel hub is 17 inches. Below are specific details about wheel hubs: 1. Location of the wheel hub: The wheel hub is the central part of the wheel where the axle is installed, commonly referred to as the "rim" or "steel rim." Wheel hubs are prone to accumulating dirt, and if not cleaned for a long time, they may corrode and deform, posing safety hazards. 2. Material classification of wheel hubs: (1) Steel wheel hubs: The main advantages are simple manufacturing processes (typically using casting techniques, such as low-pressure casting for aluminum alloy hubs) and relatively low cost, along with strong resistance to metal fatigue. Steel wheel hubs are heavier (steel hubs are much heavier than aluminum alloy hubs of the same size), have greater inertial resistance, poorer heat dissipation, and are prone to rust. (2) Alloy material wheel hubs: They are lighter in weight, have lower inertial resistance, high manufacturing precision, and minimal deformation during high-speed rotation, which improves the vehicle's straight-line driving performance and reduces tire rolling resistance, thereby decreasing fuel consumption. Alloy materials also have thermal conductivity about three times that of steel, providing better heat dissipation, which benefits the vehicle's braking system, tires, and reduces thermal degradation of the braking system.
I've driven several Toyota Crowns, and the 2018 and 2021 models both came with 18-inch wheels, which are quite common. If you opt for the base trim, it might only have 17-inch wheels, but the higher trims or sport versions come with 19-inch ones—like my friend’s top-spec model, which has 19-inch wheels. When changing wheels, pay special attention to tire compatibility. Larger wheels may look better but can reduce comfort and increase bumpiness, while smaller ones might compromise grip. I once upgraded to 20-inch wheels and noticed a slight increase in fuel consumption—daily driving feels more comfortable with the factory size. I recommend checking the vehicle’s placard or manual first to avoid buying non-compliant wheels.
