How to Measure Bolt Pattern on Car Rims
Bolt pattern, also known as lug pattern, is an essential specification when it comes to fitting car rims. It refers to the spacing and number of bolt holes on the rim that are used to secure the wheel to the vehicle. Having the correct bolt pattern is crucial for safety and proper fitment. In this article, we will guide you through the process of how to measure bolt pattern on car rims.
Understanding Bolt Pattern
Before we dive into the measurement process, it’s important to understand what bolt pattern entails. Bolt pattern is typically represented by two numbers, such as 5×114.3. The first number (5 in this case) indicates the number of bolt holes on the rim, while the second number (114.3 in this case) represents the distance between the bolt holes in millimeters. It’s important to note that bolt patterns are not standardized and can vary between vehicles and manufacturers.
Tools Needed
To measure the bolt pattern on your car rims, you will need a few basic tools:
1. A ruler or measuring tape
2. A marker or pen
3. A straight edge or ruler
Measuring the Bolt Pattern
Now that you have the necessary tools, follow these steps to measure the bolt pattern on your car rims:
1. Place the rim on a flat, even surface to ensure accurate measurements.
2. Using the straight edge or ruler, measure the distance between the center of one bolt hole and the center of the bolt hole directly across from it. This is known as the diagonal measurement.
3. Repeat step 2 for the remaining bolt holes on the rim.
4. Once you have the diagonal measurements for all bolt holes, compare them to the standard bolt pattern specifications for your vehicle. The standard specification will typically be found in your vehicle’s owner’s manual or by consulting a manufacturer’s website.
5. If the diagonal measurements match the standard specification, you have successfully measured the bolt pattern. If not, you may need to consult a professional or look for a rim with the correct bolt pattern.
Common Bolt Patterns
Some of the most common bolt patterns include:
– 5×100: Often found on compact and mid-size vehicles.
– 5×114.3: Common on many European and Asian vehicles.
– 5×120: Common on many German vehicles.
– 6×139.7: Common on many American full-size vehicles.
Conclusion
Measuring the bolt pattern on car rims is a crucial step in ensuring a proper fitment and safety. By following the steps outlined in this article, you can easily determine the bolt pattern of your car rims and make an informed decision when selecting new wheels. Always refer to your vehicle’s specifications or consult a professional if you’re unsure about the correct bolt pattern for your car.
