How to Measure Wheel Bolt Patterns - J J Motorsports
How to Measure Bolt Patterns for Dirt Race Cars
Bolt Patterns for Dirt Street Stocks and Modified Race Cars
Every racer wants to have the best wheels for their hot rod. The wheels may get older, or you might want to upgrade to a better set of wheels without any solid reason to do so. When you go to purchase new steel Bassett or Aero rims for your racing hot rod, there are a few factors that must be known to you. Bolt patterns are one of these factors. Today, we will focus on how you can measure bolt patterns accurately.
Bolt Patterns
There are many different bolt patterns in the market. How do you know the perfect size bolt pattern for your wheels? How can you find the perfect bolt pattern for your wheels? To do so, first, you have to be able to identify the types of bolt patterns.
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Identifying Bolt Patterns
Identifying the bolt patterns is easy. When buying new wheels for your dirt street stocks, identifying the type of bolt patterns is a very easy task to do. You just have to calculate the number of stud holes on the wheels. The studs are usually -4, -5, or -6 lug. After identifying the number of studs, you have successfully completed the initial phase of identifying the bolt patterns for your dirt modified. Remember that identifying the number of studs must always be the initial phase of identifying bolt patterns. They are listed on all the product lists worldwide when purchasing wheels for your 4-cylinder, street stock, or modified race car.
For example, if a product listing has a bolt pattern listed as 4x100mm, then it means that it is a four-lug wheel. But what is the next number (100mm)? Well, the next number is also significant. It is actually the diameter of the circle formed by passing through the centers of the wheel lugs. The units may vary between inches and millimeters, so you need to be sure about the units used on the product listing that you are watching.
Measuring Bolt Pattern in -4, -5, and -6 Lug Wheels
The process for measuring the bolt pattern in the -4, -5, and -6 lug wheels is the same. The process is explained below:
- All you have to do to measure the bolt pattern in -4, -5, and-6 lug wheels is to select a reference stud.
- After selecting a reference stud, you have to measure the distance from the center of your reference stud to the center of the stud that is in front of it. The term front is very significant here. Front here means at an angle of 90 degrees. The image attached below will further help you out to understand the idea.
Measuring Bolt Pattern in -5 Lug Wheels
The calculation for measuring the bolt pattern in -5 Lug wheels is a little complicated but don’t worry, and we are here to help you out. Unlike the -4, -6, and -8-lug wheels, there is no slug directly across from each other. Therefore, to measure the bolt pattern in such wheels as -5 lug wheels, you need to select a reference slug and then measure the distance from the center of that slug to the far side of the slug across it. Some common 5 bolt patterns are 5x5, 5x4.75, and 5x4.5. The 5x5 bolt pattern is most common for stock car racing. The picture below explains
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