![]() ![]() While not nearly as common as it was 10 years ago, backspacing is pretty similar to offset. Offset doesn't only affect how the wheel will fit on a vehicle but plays a major part in how the wheel is styled as well. Wheels that have a low or negative offset often make the surface of the wheel more concave and, depending on how aggressive the wheel is, create a deep lip. Offset plays a big part in how a wheel looks. It may cause improper handling and more stress on the suspension. Like too much positive offset, even too much negative offset can pose risks. If the backpad is 44mm behind the centerline, the offset is -44. ![]() Similar to measuring positive, negative offset is how far behind the centerline of the wheel the backpad sits. It's not uncommon for most aftermarket wheels on trucks to be negative offset wheels. Make sure that you take extra time to dial in the correct offset for your build. Too much positive offset could result in your wheels not clearing your suspension or brake parts, causing a lot of damage. When it comes to answering the question, "what is offset?", we need to know what impact positive offset has on your truck. So a wheel that has the backpad 23mm in front of the centerline of the wheel, the offset becomes +23. If the backpad is in front of the centerline of the wheel, towards the face of the wheel, the offset is positive. ![]() If the backpad is lined up with the centerline of the wheel, then the offset is 0. The offset of a wheel is calculated by measuring the distance between the centerline and the hub mounting surface, or the backpad of the wheel. How is Offset Calculated?Īnother way to understand what wheel offset is by understanding how to calculate it or what number it represents. The midpoint between these two bead seats becomes the centerline of the wheel. To find the centerline, aftermarket wheel companies measure the distance between each bead seat the part of the wheel that the edge of your tire attaches to (not the lip of the wheel). ![]() The centerline that we referred to before is found on the barrel of the wheel. ![]()
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May 2023
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