Wheel Offsets are a result of changing a wheel’s diameter, which is usually done when plus-sizing. Your tire and wheel dealer will know about this, but here is a brief description and the impact if not corrected.

Zero Offset - is when the center line of your rim is dead centered on the axle.

Positive Offset – occurs when the center line sticks out toward the street side. Most factory (OE, Original Equipment) rims will have this type of offset.

Negative Offset – occurs when the center line sticks in toward the brake side. This means the rim’s inner lip is closer to the vehicle’s frame, and is also known as "deep dish".

When plus-sizing wheels or tires, determine the affects of various tire sizes on the wheel’s offset as follows:

•  A 1" wider rim causes the outside edge of the wheel to stick out by 1" towards curbside

•  A 2" increase in wheel diameter causes the tire to be 1" closer to the vehicle’s body

•  A 2" wider tire causes the curbside edge of the tire to stick out 1" farther from the vehicle and the inner    edge to be 1" closer to the frame