Wheel Offset Measurement Diagram - Rim Width, Centerline & Mounting Face

This document is a small technical diagram illustrating how wheel offset is measured on an automotive wheel. It shows a cross-section (profile) view of a wheel rim. Across the top, the overall "WIDTH" of the wheel is dimensioned, and a dashed centerline divides that overall width into two equal halves, each also labeled "WIDTH" (i.e., half-widths on either side of the wheel centerline). The "OFFSET" label, shown in large red text with a small arrow dimension, indicates the distance between the wheel's centerline and the hub mounting surface where the wheel bolts to the vehicle. The right side of the diagram is labeled "FRONT (Street Side)," identifying the outboard face of the wheel as drawn. From this diagram a reader can learn the basic definition of wheel offset: it is measured from the centerline of the wheel's width to the mounting pad, with positive offset placing the mounting surface toward the street (outboard) side. The document contains no year, make, model, part numbers, or numeric specifications, it is purely a conceptual/measurement reference. It was uploaded to a 1976 Chevrolet Corvette gallery as part of a set of wheel and tire fitment reference images.