Wheel offset is the distance between the wheels hub mounting surface and the centerline of the wheel. It determines how much space you have on either side of the wheel and how the wheel sits in the wheel well. There are three types of wheel offset:

• Zero offset: The hub mounting surface is in line with the centerline of the wheel.
• Positive offset: The hub mounting surface is in front (more toward the street side) of the centerline of the wheel. Most wheels on front-wheel drive cars and newer rear-drive vehicles have positive offset.
• Negative offset: The hub mounting surface is behind the wheel centerline. "Deep dish" wheels are typically a negative offset.

Proper offset is important for driving safety, as the wrong offset can reduce vehicle stability or interfere with braking. Backspacing is another important measurement that determines the distance between the mounting surface and the back edge of the wheel. Its especially important to factor in when the new wheel package is wider than what came on your vehicle. Getting offset and backspacing measurements right means youll get a wheel and tire package that offers the looks, handling, and performance youre after.