What Are Hub Centric Rings? Hub centric rings are designed to help properly center aftermarket wheels on a vehicle’s hub. When the wheel center bore is larger than the vehicle hub diameter, hub centric rings fill the gap and assist with accurate wheel alignment, helping reduce vibration caused by improper centering. Sizing Explanation The inner diameter (ID) must match the vehicle hub diameter, while the outer diameter (OD) must match the wheel center bore diameter. Correct sizing is essential for proper fitment. Please confirm both dimensions before purchase. Material & Durability These hub centric rings are made from high-quality aluminum alloy , offering excellent strength and resistance to corrosion and heat. Compared to plastic alternatives, aluminum hub centric rings are better suited for long-term use and maintain precise fitment under demanding conditions. Installation Installation is simple and requires no vehicle modification. Place the hub centric ring onto the vehicle hub first, ensuring it sits flush and aligned, then install the wheel as normal. Professional installation is recommended if you are unfamiliar with wheel installation procedures. An installation reference video is available. Important Notice Hub centric rings are intended for wheel centering assistance only. They do not replace wheel balancing or correct suspension or wheel-related issues. Proper sizing and installation are required. Incorrect sizing or installation may result in vibration or fitment issues. For use with compatible aftermarket wheels only.