The configuration of studs or holes on the wheel hub dictates which wheels are suitable with a particular automobile. This association is outlined by two numbers: the variety of studs/holes and the diameter of the circle on which they’re organized. For instance, a 4/156 specification signifies 4 studs positioned on a circle with a diameter of 156 millimeters. Right matching of this specification is essential for secure and safe wheel mounting.
Guaranteeing dimensional compatibility between the wheel and the automobile’s hub is paramount for security and efficiency. An incorrectly matched specification may end up in wheel instability, vibration, and doubtlessly catastrophic failure of the mounting {hardware} or wheel. Understanding the historic evolution of this specification on particular autos can also be helpful for homeowners looking for to keep up or improve their machines.