Wheel offset measurement is defined in three different ways. Zero offset occurs when the hub mounting surface is completely even with the centerline of the wheel. Positive offset means that the hub mounting surface is toward the front of the wheel, while negative offset means the surface is toward the back or brake side of the wheel.
When the width of the wheel changes, it also changes the offset. If the offset stays the same but width still increases, the width is split between the inside and outside—this obviously will not work, which is why we've tested the fit on thousands of different vehicles. We are fully prepared to help you find the proper wheel fitment. Search our wheels by vehicle, or contact one of our sales specialists.