All products, company names, brand names, trademarks and logos are the property of their respective owners! To find your bolt pattern, measure the distance as accurately as possible and then find the corresponding bolt pattern in the conversion table below. If you are using your vehicles for daily operation, adapters may lead to severe accidents. The closest you can get is to measure from the center of … A 5-100mm bolt pattern means 5 bolt holes that are placed in a circle with a diameter of 100 mm. Equivalent Bolt Pattern: 5 X 114.3 How To Measure 5 Lug Bolt Patterns. The most common trailer wheel bolt pattern overall is 5 X 4.5 and is also a very popular size in passenger cars. As long as I get that correct, will the wheels I order have the correct size center hole? To measure 5 lug pattern wheels, hold the end of the ruler or tape measure to the center of one bolt. These two steps together will give you your bolt hole pattern. So if you get 4.5 inches, you have a 4X4.5 bolt pattern (four on four and a half). We need to warn you about adapters. Be sure … Bolt circles are measured in both inches and millimeters, therefore you may hear a bolt pattern referred to as both (i.e. A bolt circle of 5 x 4.5 would indicate a 5 lug bolt pattern on a circle with a diameter of 4.5 inches. 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. This video shows how to measure the bolt pattern of a 6-lug trailer wheel; or any other wheel. The 5 X 4.5 Bolt Pattern or Pitch Circle Diameter (PCD) is made up of the stud count (5) and the bolt circle measurement (4.5), the notional circle determined by the center position of the studs.. If your wheel has a 5-bolt pattern, measure from the BACK of one bolt hole to the center of the second bolt hole as shown in the diagram. How to Measure Bolt Patterns? Identifying your bolt pattern or lug pattern. So by allowing lug bolts to fit in, lug wholes make sure that wheels are mechanically attached to the vehicle. Most recreational and utility trailers on the road today have a 4, 5 or 6 lug bolt pattern, while heavy-duty trailers will most often use 6, 8 or 10 lug wheels. You can estimate the measurement by using a straight line from the backside of one hole to the center of the third bolt hole. For accurate estimation, you need a wheel pattern gauge. This distance will give you the bolt circle diameter for a 5-lug go-kart wheel. In this process, you will be skipping the hole that lies in between the two holes you are measuring. For example, if you have a wheel with 5 bolt holes and they form a circle with a 5-1/2" diameter, you have a wheel with a 5 on 5-1/2 bolt pattern. If you are measuring the wheel the easiest way is to measure the distance between the center of one lug hole to the center of the lug hole adjacent to it, then look on the chart and if that measurement is 2-5/8 inches the bolt pattern is 5 on 4-1/2. But even two 6 lug holes bolt pattern can mismatch. The diagrams below indicate the proper measuring methods. Thanks! All but 5-lug patterns are measured in this manner. Since many people are unaware of bolt patterns, they buy rims that do not match their vehicle. Measure from the center of one lug holes to the center of the other lug hole that is sitting right across the first one. Prior to buying a rim next time, measure your bolt pattern first and buy the perfect rim for your vehicle. Wheel Dimensions There are four important measurements that are used to categorize and identify a wheel for fitment purposes. The distance that you are measuring is the diameter of a circle intersecting the center of each lug … In a 5-lug wheel, measure from the back side of one lug hole to the center of another lug hole that is sitting across the former lug hole. The pattern which dictates the formation of lug holes in the wheel is called bolt pattern. Typically this will be 4, 5, 6, or 8. Measuring a 6 bolt wheel requires you to measure … If you need any more help with your lug pattern give us a call at 800-896-7467. Because, different vehicles don’t come with the same bolt patterns. Since the lug holes are not exactly across each other, the measurement is different. Common bolt patterns are of 4, 5, 6 or 8 lug holes. So, you need to know the difference before purchasing rims for your vehicle. If the diameter of the circle varies even for one millimeter, two rims won’t match. The measurement of a 5 lug bolt pattern is a bit difficult. If the distance is: 2-5/8" - the bolt pattern is 5 on 4-1/2 2-3/4" - the bolt pattern is 5 on 4-3/4 It means that, your wheel has 5 bolts evenly spaced in a circle of 100mm diameter. 4-bolt pattern is measured in a straight line from the center of one bolt hole to the opposite one. You can see a big hole in the center of your wheel. Next, you'll measure how many inches apart the bolt holes are. Remember, the diameter of circle may vary. I attached two pictures that show this as well. The measurement is easy. Now, start at the outer wall of the bolt hole and measure all the way to the center of the other bolt hole. If you ever need to buy new rims for your truck, you should know about bolt patterns. How To Measure 5 Lug Bolt Patterns. A common measurement for a 5 bolt pattern is 120 millimetres (4.7 in) from the top of 1 lug to the center of another. Means that, your wheel has 4 lug hole that lies in between the center of the bolt pattern 5. 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