PCD- Pitch Circle Diameter - Infinity Wheels: Off Road Wheels
PCD Charts | CM Trailer Parts | New Zealand Trailer Parts & Accessories | Trailer Lights, Boat Trailer Parts, Trailer Wheels & Tires, Brake Systems for Trailers
A - How to Calculate Your Wheel PCD- Steel Wheels- TrailerPartsNZ.com
How to measure a 4 stud PCD - YouTube
Measuring a wheel PCD
Working out Pitch Circle Diameters (PCD) | UK-Trailer-Parts