Tire Cross-Section Diagram: Tread Width vs Rim Width vs Section Width

This document is a simple cross-section diagram of a tire mounted on a wheel rim, illustrating three key tire and wheel measurements. The illustration shows a tire in cross-section (cut view) seated on a rim, with three labeled dimension arrows. At the top, 'TREAD WIDTH' indicates the measurement across the tire's tread surface (the portion that contacts the road). At the bottom of the rim area, 'RIM WIDTH' shows the measurement across the wheel rim between the bead seats/flanges where the tire mounts. At the very bottom, 'TIRE SECTION WIDTH' indicates the widest measurement across the tire's sidewalls (the overall width of the inflated tire). The diagram helps readers understand the difference between these three commonly confused measurements when selecting tires and wheels: tread width is narrower than section width, and rim width is measured on the wheel itself rather than the tire. There is no text beyond the three dimension labels — no numeric values, part numbers, or vehicle applicability information appears on the drawing. It was uploaded as part of an album containing other wheel/tire reference diagrams (offset, backspacing, wheel section illustrations), serving as a general tire fitment reference.