BACK SPACE OR X-FACTOR AND OFFSET EXPLAINED IN DETAIL
Backspace and offset determine the position of the wheel and tire on the vehicle. Wheel positions vary based on the application. Applications range from tucked under the fender to sticking out.
Correct backspace & offset eliminate clearance issues with fenders, brakes, struts or other possible obstructions. Some applications will require modification.
Backspace is the distance in inches from the edge of the rear flange to the mounting surface.
Offset is the distance in millimeters from the wheel’s imaginary centerline to the mounting pad.
There are three main types of offsets: positive, zero and negative.
Positive offset: The mounting pad is forward of the centerline (towards the street).
Zero offset: The mounting pad is on the wheel centerline.
Negative offset: The mounting pad is behind the wheel centerline (towards the vehicle).
Here’s a side-by-side look at each of the three offset types:
Both backspace and offset relate to the position of the mounting surface. As seen below, the position of the mounting surface affects the position of the wheel on the vehicle. You can also see how the offset impacts the appearance of the wheel.
Some vehicles run staggered offsets. In a staggered setup the front wheel is narrower than the rear requiring different offsets for each.
HUB RINGS APPLICATION EXPLAINED
Hub centric rings are rings that cover the spacing between the center bore of an aftermarket wheel to the hub of the vehicle. In certain cases aftermarket wheels usually have a standard center bore size to accommodate a wide variety of vehicles. There are different sizes of hub centering rings and they are measured in millimeters which are available through the dealer who sold the wheels. Hub centric rings are important because they secure the wheel in place, and they ensure that the wheels are perfectly centered on the vehicle’s hub. This helps to prevent any type of vibration issue. You can contact us for Hub rings for any specification or custom made hub rings.
