PCD means pitch circle diameter. It refers to the size of an imaginary circle that goes through the center of each bolt hole on a wheel. PCD helps define the wheel’s bolt pattern, which is the way the screw holes are arranged in a circle.
When picking new UTV wheels, make sure they match the PCD and stud pattern of your original wheels. The PCD is usually listed with the number of bolts. For example, "5 x 100" means there are five bolts and the PCD is 100 mm.
Here are some ways to find and measure a wheel’s PCD:
FIND THE PCD
- For Valor Offroad wheels, you’ll find the PCD stamped on the back of the wheel, on the mounting pad. For OEM wheels, check the owner’s manual or look it up online using your vehicle’s year, make, and model.
MEASURE THE PCD
- If your wheel has an even number of lugs, measure from the center of one lug to the center of the one directly across from it. If there’s an odd number of lugs, measure from the center of one lug to the outer edge of the one opposite it (see image above).
CALCULATE THE PCD
- To calculate the PCD for a 4-stud wheel, divide the distance between the studs by 0.7071. For a 5-stud wheel, use 0.5878, and for a 6-stud wheel, divide by 0.5.
Want to learn about measuring backspacing and offset? Our Source blog post explains it in simple terms.
