The configuration of lug holes on a wheel hub, specifically the diameter of the circle they form and the number of lug nuts, is a critical specification for vehicle compatibility. This measurement ensures that a wheel will properly and safely attach to the vehicle. For example, a measurement of 5×114.3mm indicates five lug holes arranged on a circle with a diameter of 114.3 millimeters.
Correctly matching this specification to a vehicle is paramount for safety and performance. Using wheels with an incompatible configuration can result in wheel detachment while driving, leading to accidents and potential injuries. Historically, manufacturers have utilized various configurations, necessitating careful verification when replacing or upgrading wheels. Understanding this specification allows for proper wheel selection, ensuring safe and reliable vehicle operation.