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Also worth noting are bolt circle and center bore. Bolt circle refers to the diameter of a circle drawn
through the center of the wheel studs. On a four or six-lug car, this is easy to measure, simply go
center to center on the holes or studs. Five lug wheels and hubs are more common to the cars that we
love, and the odd number can make them a bit tricky to measure. To quickly measure on the wheel,

center the measuring tape or ruler on one hole, skip a hole, then measure to the outside of the next
hole.

This is the best way to measure bolt circle without a template. Measure from the outside of

one stud to the center of the stud across from it.

There are also plenty of bolt circle templates available,. These make it easy to measure bolt
circle quickly and accurately.

Also critical is the center bore. This is the hole through the center of the wheel, and if it's
smaller than the protruding part of your hub or axle, the wheel will not fit. Check out

our Wheel Bolt Pattern Guide to learn more about measuring all types of wheel bolt patterns.

In Conclusion

The most important takeaway here is not to confuse offset and backspacing. With that
established, you can make an informed decision when selecting aftermarket wheels for your

car