What Is Wheel Width And How Is It Measured?

What Is Wheel Width And How Is It Measured?


rim-width_0

Wheel width is the distance between the bead seating areas across the wheel rim (it is NOT the distance from wheel outside edge to the opposite edge). Wheel width has increased partly in response increasing tire width. However, the most important consideration for wheel width is that it be the proper size for the tires that will be installed. Every tire manufacturer specifies a range of rim widths for each tire size; even within this range, the mounted width of the tire will change.


Once mounted, the tire’s actual width can increase by almost an inch in some cases when going from the narrowest to the widest rim allowed. This may not sound like much but it may be critical when selecting a tire and wheel package. A tire mounted on a narrower rim within the range may fit on the vehicle, but the same tire on a wider rim might not.