How To Measure Rim Bolt Pattern

March 16, 2021

How to measure your trailer wheel bolt pattern if you're replacing your trailer wheel, you've no doubt realized you need to know something called the bolt pattern (also called the lug pattern or bolt circle). That should get you your bolt pattern measurement.

Mickey Thompson Classic III Wheel Size 15" x 8" Bolt

Locate the inside center of your rim.

How to measure rim bolt pattern. Using the illustration below as guide, measuring backspacing. Measure from the middle of one stud to the outside of the second stud (skipping a stud). Measure the distance between 2 parallel lug nuts for wheels with an even number of bolts.

If you need the 4, 6 or 9 lug page look here how to measure 4, 6 or 8 lug wheel bolt pattern if you want a more accurate approach check out the wheel bolt circle calculators When it comes to 6 bolt rim, the measurement process is also easy. There are only 4 possible configurations:

Bolt patterns with an even number of lugs are measured from bolt center to bolt center while 5 lug bolt patterns are measured from the top of the upper lug to the center of the lower lug. For a 4 lug wheel, measure center to center of two holes directly across from each other. The diagrams below indicate the proper measuring methods.

Backspacing is the distance between the back of the rim flange and the mounting pad (where the hub attaches). So, you have to measure from the center of one hole and end up to the center of the opposite hole. Extend the ruler directly across from the bolt to the space across from the bolt, located in the center of two bolts or lugs, to determine the measurement.

The offset of your rims can be measured in two easy steps: If there are 4,6 or 8 studs, simply measure the center to center distance between two studs that are across the hub from each other. Measure center to center of two holes directly across from each other.

The “bolt pattern” specifically refers to the layout and distance pattern that the lug nuts are bolted to the wheel or rim. Count the number of bolts that go around the very center of your rim. So if you see 4 1/2 inches, you have a 5 on 4 1/2 ( also 5×4.5 and 5×114.3) bolt pattern.

Measure from the center of one bolt hole (or stud if it is still one the bike) across the axle hole to the center of the bolt hole on the other side. Bolt pattern the measured diameter of an imaginary circle formed by the centers of the wheel lugs or bolt holes. You need a scale or gauge.

Measure the distance from the center of your rim to the mounting plate. Measure from outer edge of one bolt hole (or stud) to outer edge of opposite bolt hole (or stud). Bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs.

You use the number of bolts to determine the method necessary to measure your rim’s bolt pattern. Now, start at the outer wall of the bolt hole and measure all the way to the center of the other bolt hole. Measure from outer edge of one bolt hole (or stud) to halfway through the opposite bolt hole (or stud).

Regardless of how many lug nuts your wheel has, if it’s an even number, you can measure the diameter this way. An example of a measurement for a 4 lug pattern is stated as 4 on 4 (inches). Measure using the metric side of the ruler, in millimeters.

If you would like to determine the bolt pattern of your car or a set of rims, the first thing you need to do is count the number of studs. If your wheel has an even number of bolts, then take a tape measure and measure from the center of 1 lug nut to the center of the lug nut directly across from it. 4, 5, 6, or 8.

Offset is usually measured in millimeters for more accuracy. Same with 6, 8, or 10 bolt pattern. Common bolt patterns are 4, 5, 6, or 8 lug holes.

Select 2 bolts that have a 1 bolt spacing on either side. A 4 lug bolt pattern means that the wheel has 4 lug hole spaced evenly on a circle. That measurement is your bolt pattern diameter.

5 or 7 (or 9) bolt pattern is trickier, so pay attention: The number you see will be the actual measurement of the bolt pattern. If there is an even number of lugs:

You have 4 lug (bolt) rims on your machine, but i will show 3 and 5 bolt rims also. A user can measure the wheel axle bolt pattern with the first plate and scale exposed, and reverse the device to measure the wheel rim bolt pattern for proper alignment and diagnosis with the second plate exposed. To measure your bolt pattern, pick the illustration below that represents your wheel stud pattern and measure as described below each illustration.

It basically goes the same as the 4 bolt rim. You can choose basically any hole to start with, but, you have to end up in the center of the opposite hole. The bolt pattern spacing can also be measured with a regular tape measure.

Measure from the center of one lug holes to the. To find your bolt pattern, measure the distance as accurately as possible and then find the corresponding bolt pattern in the conversion table 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.

Other common bolt patterns are 5×4.75 and 5×5. How to measure wheel bolt pattern. Remember, the diameter of circle may vary.

The combination tool according to claim 1, including an indented portion in the edge of the first plate with the smaller diameter. To measure the bolt pattern, we first need to count the number of bolt holes that are in (or need to be in) the rim and make sure it matches the axle hub. The accurate measurement is depicted here and can only be measured with a special tool called a bolt pattern gauge or by using a complex geometric equation.

You measure from the back of one lug (skip to next lug as shown) and to the center of that lug. Measuring your atv's bolt pattern: To measure 5 lug pattern wheels, hold the end of the ruler or tape measure to the center of one bolt.

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. Some atv models use a different bolt pattern on front and back so you'll want to double check yours before purchasing new wheels. When measuring your atv's bolt pattern you will want to check both the front and rear.

Douglas Technologies Blue Label Wheel 10×5 3 2 Offset 4