Australian
Classic Wire Wheels

Calculating P.C.D.

Three Stud

To calculate the P.C.D. of a three stud wheel or hub measure between two holes next to each other (as with five stud below) and multiply by 1.154.

Four or Six Stud

The P.C.D. of any wheel or hub with an even number of holes can be measured from the inside of one hole directly across to the outside of the hole opposite.

Five Stud

To calculate the P.C.D. of a five stud wheel or hub, measure 'X' from the inside of one hole to the outside of the next hole and multiply by 1.7012. The table below is a reference guide for some common sizes.

'X' inches 'X' mm P.C.D.
2.351 59.715 4"
2.498 63.449 4¼"
2.645 67.183 4½"
2.792 70.916 4¾"
2.939 74.650 5"
3.233 89.586 6"
3.820 97.028 6½"
2.314 58.779 100 mm
2.499 63.481 108 mm
2.591 65.832 112 mm
2.777 70.535 120 mm
3.008 76.413 130 mm
3.240 82.290 140 mm
3.703 94.046 160 mm