How To Choose the Right Size Hub-Centric Ring
Tuesday, July 9, 2024
How Do I Determine The Size of the Hub-Centric Rings I Need?
Measuring for Hub-Centric Rings
Confused by hub-centric rings? Not sure what you need? We can help! Follow the instructions below to get the two measurements you need to find the hub-centric rings that fit your wheels.
You need BOTH measurements to determine the hub ring size, the size of your rim's hole or "wheel center" and your vehicle's hub size. Once you know both measurements, hub rings are available at Enthuze.
73.1 mm OD x 57.1 mm ID Hub-Centric Rings
What Size Hub-Centric Ring Do I Need?
Two measurements are needed to order hub-centering rings. You need BOTH measurements to determine the hub ring size that fits. The size of the hub-centric rings you need depends on two things: the center bore of your rim or "wheel center" (the outer diameter (OD) of the hub ring) and the diameter of your car’s wheel hub or vehicle hub (the inner diameter (ID) of the hub ring).
What Size Is the Center Bore Of My Rim?
To get the right size hub ring, you need to first determine the center bore size of your wheel hub. This means you need to remove your wheel to measure it, there is no magic list with the bore sizes of every wheel ever made.
The best way to measure is with a dial caliper or digital caliper. If you don't have access to one of those tools, a tape measure or ruler will work but will not be as precise.
Digital Caliper
What Size Is My Vehicle's Hub?
Then you need to find out your vehicle's hub size, i.e. vehicle hub (inner diameter). The size of your vehicle’s wheel hub is usually indicated in the user’s manual for the car. A good reference for vehicle bolt circles and center bores can be found here.
The hub-centric ring will take up the space between your wheel bore and hub. For example, if the wheel center bore is 73.1 mm and the diameter of the wheel hub is 67.1 mm, a centric ring with an outside diameter (OD) of 73.1 mm and an inside diameter (ID) of 67.1 mm is needed to fill in the space.
Is There A Hub-Centric Ring Size Calculator?
No. There is no such thing as a hub-centric ring size calculator, you have to go old school and measure your wheel. Thousands of wheels are available with a variety of bore sizes. Running changes mean that sometimes bore sizes can be different for the same wheel made at different times.
Once you know the size of your vehicle's hub and the size of the center of your rim, you’ll know which hub-centric rings to look for. You need BOTH measurements to order hub rings. Once you know both measurements, hub rings are available at Enthuze.
Hub Ring Install
What Is The Purpose Of Hub-Centric Rings? Are They Required?
These rings help to keep the wheel precisely centered on the vehicle hub as the lug hardware is torqued down. Keeping the wheel precisely centered on the hub when it is mounted will minimize the chance of vibration.
The center bore is the hole in the middle of the wheel on the hub of the car. Wheels are manufactured in huge numbers, and many are not made with any vehicle's center bore in mind, hence hub rings are always recommended.
The center-bore of a wheel centers the wheel properly on the hub of a vehicle. This hole is machined to exactly match the hub so the wheels are precisely positioned as the lug nuts are torqued down. Some wheels are vehicle model-specific and will come from the factory with a bore machined to match that vehicle.
Hub rings are not for use with steel wheels. Steel wheels have a thinner mounting surface and are often too thin to accept hub-centric rings.
Steel Wheels
Hub-Centric Ring Installation
Hub rings are straightforward to install, just follow the instructions.
- Lift your car with a floor jack (detailed floor jack instructions here) ←- (links to jack article) until you have raised the wheel on which you want to install the hub ring off the ground. Support the car with a jack stand when the wheel has enough clearance for you to remove it from the car.
- Remove the lug nuts off the wheel using a lug wrench. Remove each of the nuts from around the rim so you can release the wheel from the car.
- Pull the wheel off the car using both hands. If your wheel has become rusted or dirty, you may feel some resistance; pull the wheel off firmly. A rubber mallet can also help to persuade the wheel to break loose.
- Run an emery cloth around the hub in the middle of the lug bolts to clean it. The ring will fit tightly on the hub; if any dirt or residue remains, you won't be able to get it onto the hub.
- Hold the hub ring right in front of the hub, and slide it into the center bore. Check to ensure the ring is fully seated on the hub to complete the installation. Install any remaining hub rings in the same way.
- Put the wheel back on the vehicle and tighten the lug nuts in a star pattern.
Non Hub-Centric Wheels
Are all wheels Hub-Centric?
Wheels can also be non-hub-centric by design, generally known as lug-centric. These are mostly older designs like the Cragar S/S or Astro Supreme. On lug-centric wheels, torquing is crucial to tightening the lug nuts with the vehicle on the jack as this process allows the bolts to center the rim and torque down.
Lug-Centric Wheel
Where To Buy Hub-Centric Rings?
Once you know the size of your vehicle's hub and the size of the center of your rim, you’re ready to purchase hub-centric rings. When you know both measurements, hub rings are available at Enthuze. We also have custom wheels, lug nuts, steel wheels and all the truck and Jeep accessories you need to make your vehicle unique.
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