Unless you buy a new wheel and tire to replace the spare, we recommend keeping enough of the original equipment lug nuts, in order to properly install the original spare should the need arise. Tire professionals classify bolt patterns using a two number system.
The first number indicates how many bolt holes are in the wheel, and the second describes the diameter of the imaginary circle they make. For example, a mm bolt pattern means that the wheel has 5 bolt holes equally spaced on a mm circle.
This distance is measured across the wheel center. Usually, large vehicles have more bolts arranged in a larger bolt circle. Smaller vehicles typically have fewer bolts arranged in a smaller circle. The most accurate ways to measure bolt patterns are depicted in the illustrations below. You can estimate the measurement by using a straight line from the backside of one hole to the center of the third bolt hole. Speedway Motors has a precision bolt circle template that simplifies the most common 5 lug patterns for you.
Our bolt circle template and our Wheel Bolt Pattern Tool are must have tools for the shop or swap meet. How can you be sure that you measured correctly for your compact, midsize, fullsize, truck , or SUV?
Use this wheel bolt pattern manufacturers chart to validate that you measured correctly for your vehicle's make, year, and class. It's important to ensure you have the correct offset on your wheels.
The backspace or offset is measured from the inside lip of the wheel to the inside of the flange mount. To learn more about how to correctly measure backspacing and wheel offset check out our Wheel Offset and Backspacing Guide. Products to Compare max of 3 X. Videos All Videos. How to Measure Bolt-Patterns. The easiest way to estimate the 5 lug bolt pattern, is to measure from the back of a hole to the center of the second hole.
For a 4 lug wheel, measure center to center of two holes directly across from each other. This opening is designed so that the center of the wheel is perfectly centered with the vehicle axle when the bolts are tightened. Shop for low price tires and wheels online on PMCtire: we sell a wide variety of products for every type of vehicle: SUV tires, pickup tires, light truck tires, and more.
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