Wheel Offset Diagram Explained - Positive, Zero & Negative Offset Cross-Sections

This is a small illustrated reference diagram explaining wheel offset. It shows three cross-section drawings of wheels side by side, each with a vertical red line marked 'Wheel Center' indicating the wheel's centerline, and a second line indicating the mounting surface (hub mounting face) position. The left diagram is labeled 'POSITIVE OFFSET' and shows the mounting surface positioned outboard of the wheel centerline (toward the street side of the wheel). The middle diagram is labeled 'ZERO OFFSET' and shows the mounting surface aligned exactly with the wheel centerline. The right diagram is labeled 'NEGATIVE OFFSET' and shows the mounting surface positioned inboard of the wheel centerline (toward the brake/suspension side). Blue dimension arrows at the bottom of the positive and negative examples indicate the offset distance between the mounting face and centerline. A reader can learn from this document how positive, zero, and negative wheel offset are defined visually, which is useful when selecting aftermarket wheels or determining fitment. The diagram is generic and not specific to any vehicle make, model, or year; it contains no measurements, part numbers, or text beyond the labels transcribed.