The specification indicates the configuration of the mounting holes on a vehicle’s wheel hub. This measurement, often expressed as a number of studs and the diameter of the circle they form, is crucial for ensuring proper wheel fitment. For example, a specification of 5×114.3mm indicates a five-lug pattern on a circle with a diameter of 114.3 millimeters.
Correct wheel fitment is essential for vehicle safety and performance. Using wheels with the incorrect specification can lead to wheel instability, damage to the vehicle’s axles and bearings, and potential wheel separation. Adhering to the appropriate specification ensures proper load distribution, optimal handling, and prevents premature wear on related components. Furthermore, understanding the standard allows for compatibility when replacing original wheels with aftermarket options.