What is pcd on wheels?

PCD on wheels refers to the Pitch Circle Diameter (PCD) of the wheel. The PCD is the diameter of an imaginary circle that passes through the center of the wheel's bolt holes or stud holes. It is used to determine the correct fitment of the wheel onto a vehicle.

PCD on wheels is a crucial measurement that ensures the wheel's bolt pattern matches the vehicle's hub or axle. It is expressed in millimeters and typically represented by the number of bolt holes and the diameter of the circle they form. For example, a wheel with a PCD of 4x100 means it has four bolt holes arranged in a circle with a diameter of 100mm.

Matching the PCD on wheels ensures that the wheel is securely attached to the vehicle, providing stability and preventing any issues such as vibration, wobbling, or uneven wear. It is important to select wheels with the correct PCD to avoid fitment problems that can lead to safety hazards.

When replacing or upgrading wheels, it is advisable to determine the PCD of the vehicle and find wheels with a matching PCD. Many car manufacturers provide this information in the vehicle's manual or specifications. Aftermarket wheel manufacturers also provide PCD options to fit various vehicle models.

Additionally, PCD on wheels also affects the selection and installation of wheel accessories such as wheel spacers, adapters, and bolts. These accessories must have a compatible PCD to ensure proper fitment and safe usage.

In summary, PCD on wheels is a measurement that determines the correct fitment of the wheel onto a vehicle's hub or axle. It is essential to match the PCD to ensure safe and stable wheel installation.