APEX aluminum hub centric rings have an inner diameter of 67.1mm and outer diameter of 72.56mm, and are specifically made for the C8 Corvette in order to be compatible with APEX BMW wheels.
Hub centric rings (or centering rings) are small rings traditionally made of aluminum or plastic which sit in between the vehicle's hub and the wheel center bore to fill a gap. The rings ensure wheels with a larger centerbore are properly centered to your vehicles hub, eliminating the chance of vibration. Centering rings are required for all C8 Corvettes using APEX BMW wheels.
Installing APEX hub centric rings is very easy, and does not require special tools. After ensuring your vehicles hub is clean and free from surface rust or debris, simply slide the rings onto your vehicle's naked hub. From here you may use the standard wheel installation process per your vehicles manual. Slide your APEX BMW wheels onto the hub, followed by hand tightening your lugs in a star pattern. Once the wheel is secured evenly to the hub and the vehicle is sitting on the ground, apply the proper torque specifications to your lugs in a star pattern.
|Outer Diameter (Wheel Bore Size)
|Inner Diameter (Hub Bore Size)