Home American Racing Wheels Torq Thrust Vintage Wheels Truck Wheels Custom Wheels

American Racing Wheels Information

How to measure a wheel bolt pattern

The bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs. Bolt patterns can be 4, 5, 6, 7, or 8 lug holes, however tuner applications are typically 4 or 5 lug. Bolt circles are measured in both inches and millimeters, therefore you may hear a bolt pattern referred to as both (i.e. 5x114.3 mm is also referred to as 5x4.5). A bolt circle of 5x114.3 mm would indicate a 5 lug pattern on a circle with a diameter of 114.3mm (or 4.5").

The diagram is an example of the proper method for measuring bolt patterns.

The conversion of inches to mm is 1 inch to 25.4 mm.

Other American Racing Brands and Links

American Racing Wheels     Torq Thrust    Moto Metal      Helo Wheels    XD Wheels      Truck Wheels    Wheelsforless

Other Custom Wheels

Ion Alloys     Foose Wheels     Custom Wheels    Billet Specialties     Fuel Wheels