Circuit Sports Altrac hubcentric wheel rings are made of high quality CNC machined aluminum and can be used for various applications. Without hubcentric rings, wheels are mounted lugcentrically and can cause some owners to experience vibration at freeway speeds. Our hubcentric wheel rings are designed with tight tolerances to ensure that the wheel is concentric with the wheel bearing by filling in the space between the hub and center bore of the wheel. This improves wheel fitment and wheel balance as well as prevent damage due to off-centered vibration.

Applications:
Any car with a 54.1mm hub and any wheel with a 65mm or 68.3mm center bore.

Example 1: 54.1mm-68.3mm fits NA/NB Mazda Miata with 13”, 14”, and 15” SSR MKII/MKIII.
Example 2: 54.1mm-65mm fits NA/NB Mazda Miata with 15” TE37SL or 15” Gramlights 57DR. Fits most Rays/Volk/Gramlights wheels up to 16”.

Price is for one set of 2 wheel rings, for all 4 wheels, please order 2 sets.