What are hub-centric rings for?
Most aftermarket wheels have a large center hub diameter so the wheels will fit a variety of different vehicles. The hub-centric rings are made to fill the gap between the wheel and the vehicles hub to ensure the wheel is perfectly centered. This not only makes installation of your new wheels much easier but will also help eliminate any vibrations you may encounter.
How do I know which hub ring to choose?
Hub rings are sized by using two different numbers that are measured in millimeters. The first number such as 108 is the diameter of the center bore on the wheel and is the outside diameter of the hub ring. The second number such as 78.1 is the diameter of the hub on your vehicle and is the inside diameter of the hub ring.
Each package contains four (4) hub centric rings in retail packaging.