Hub Centric Rings are the perfect way to finish your new wheel installation. These hub rings ensure a perfectly smooth, vibration free ride. Only fits for any vehicle with a 72.56mm hub that needs to adapt a wheel with 74.1mm center bore. Hub rings are sized by using two different numbers that are measured in millimeters. The first number such as 73.1 is the diameter of the center bore on the wheel and is the outside diameter of the hub ring. The second number such as 72.56 is the diameter of the hub on your vehicle and is the inside diameter of the hub ring.