What Hub Centric Rings Do I Need? | Wheel Tech

This is part II, and assumes you know what a hub centric ring is, and why they are important. If you want to start at the beginning check out Part I here: What is a Hub Centric Ring?

Sizing It Up

While it can be intimidating at first, picking the proper hub centric ring for your new setup is quite easy. There are two important numbers you need to know.

  1. Outside Diameter needs to match the center bore of your wheels. Many aftermarket passenger car wheels use a standard size of 73.1mm or 72.56mm. This is larger than just about every car on the road and allows the wheel to be easily made hub centric with the use of a hubcentric rings. If you are unsure what this is, please contact your wheel manufacturer, wheel vendor or use a caliper to carefully measure the hole in the back of the wheel.
  2. Inside Diameter needs to match the hub bore of your vehicle. If unsure contact us, check your vehicle’s owners manual or do a quick google search; something like “1989 BMW 318i hub bore” usually yields good results.

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