The specification dictates the configuration of the bolt holes on a wheel’s hub, indicating how it attaches to the vehicle. For example, a 5×100 configuration signifies that the wheel has five bolt holes arranged in a circle with a diameter of 100 millimeters. This measurement is critical for ensuring wheel compatibility.
Correctness in this specification is paramount for vehicle safety and performance. Adherence ensures proper wheel mounting, preventing vibration, instability, and potential wheel detachment. Historically, variations have existed across different model years and trim levels, highlighting the importance of confirming the correct specification before purchasing new wheels or performing wheel maintenance.