What is the wheel size of the BMW X4?

[MacHaven]

The BMW X4 comes with two wheel options: 19-inch rims and 20-inch rims, which vary depending on the model. Below is some relevant information: 1. The wheel hub is the cylindrical metal component inside the tire that supports it and is mounted on the axle. It is also called the rim, steel wheel, or wheel disc. 2. Larger wheel sizes with higher tire aspect ratios can provide a visually appealing tension effect and improve the stability of vehicle handling, but they also come with the downside of increased fuel consumption. 3. The width of the wheel hub is commonly referred to as the J-value. The width of the wheel hub directly affects tire selection. For the same tire size, different J-values will require different tire aspect ratios and widths. The bolt hole size is professionally known as the pitch circle diameter (PCD), which refers to the diameter between the fixing bolts at the center of the wheel hub. The offset is the distance between the mounting surface and the centerline of the wheel hub, and this parameter can usually be found on the back of the wheel hub.