The configuration dictates how a wheel is mounted to the vehicle’s hub. This arrangement is defined by the number of bolts and the diameter of the circle they form. For example, a 4×137 indicates a four-bolt configuration with a circle diameter of 137 millimeters. Such specification is essential for proper wheel installation.
Correct specification ensures wheel compatibility, safe operation, and optimal performance. Historically, selecting the appropriate configuration has been critical in the automotive and off-road vehicle industries to guarantee structural integrity and prevent wheel detachment, thereby mitigating potential accidents and maintaining vehicle handling characteristics.