The specification describes the configuration of the mounting holes on a vehicle’s wheel hub and the corresponding wheel. For the specified vehicle, this configuration dictates the number of lug nuts or bolts required to secure the wheel to the hub, as well as the diameter of the circle on which these fasteners are positioned. A common representation is a two-number format, such as “5×100,” indicating five lug holes on a 100mm diameter circle.
Understanding this specification is critical for proper wheel fitment and vehicle safety. Using wheels with an incorrect configuration can lead to vibration, premature wear on components, or, in extreme cases, wheel detachment. Historically, manufacturers have used various configurations; therefore, identifying the correct specification ensures compatibility and avoids potential hazards. Replacing wheels requires adherence to this specific attribute.