All About Auto

Bolt pattern on a rim or Pitch circle diameter (PCD) from the wheel designer point of view, is the measurement of the center to center distance of the hole of the wheel, where the wheel nut lies, to the opposite hole, it is can be determined by measuring the wheel bolt hole or the stud bolt of the vehicle where the wheel is installed.

What's the used of determining the bolt pattern, actually if we want to buy a wheel, one of the things that we want to consider is the bolt pattern so as the wheel that we bought conform to vehicle specification.

How to determine the bolt pattern of the vehicle?

Use a meter tape to measure the bolt pattern.

You can either measure it on the vehicle stud bolt or on the wheel itself preferably the easiest is to take out the vehicle spare tire and measure it.

Measure the distance between the two opposite hole as illustrated.

The distance that will be measured is the bolt hole pattern or the pitch circle diameter.