How to choose the right size Hub Centric Ring

Posted by Robert McJannett on

How do I determine the size of 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 order Hub Centric Rings. You need BOTH measurements to order Hub Rings, the size of your rim's hole and the size of your vehicle's hub. Once you know both measurements, Hub Rings are available at all Canadian Performance Improvements Locations. We have the parts to help you fit your wheels on your car! 

 

What Size Hub Centric Ring do I need?

Two measurements are needed to order hub centering rings. The size of the Hub Centric Rings you need depends on two things: the centre bore of your rim, and the outer diameter of the car’s wheel hub. You need both of these measurements to order Hub Rings.

 

 

What Size is the centre bore of my Rim?

To get the right size Hub Ring, you need to first determine the centre 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, we created a template of the most common bore sizes. Click the HUB RING TEMPLATE link to download our Free Template to measure the centre of your wheel.

NOTE: When printing, make sure “Scale to Fit” is not checked. Print on thicker stock paper for best results. Be sure to measure against a ruler to ensure it printed at the correct size. Cut on the centre of the dotted lines and insert into the centre of your wheel to determine the size of your wheel bore.

Wheel Bore Template in Use

 

 

What Size is my vehicle's Hub? 

Then you need to find out your vehicle's hub size, i.e. Inner Diameter or I.D. The size of your car's wheel hub is usually indicated in the user’s manual for the car. A good reference for vehicle Bolt Circles and Centre Bores can be found HERE.

The Hub Centric Ring will take up the space between your Wheel Bore and Hub. For example, if the diameter of the wheel hub is 67.1 mm, and the wheel centre bore is 73 mm, a centric ring with an I.D. of 67.1 mm & O.D. of 73 mm is needed in-between, so the right part is TOC73-6710.

 

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 actually measure your wheel. Thousands of wheels are available with a variety of bore sizes. Running changes mean sometimes bore sizes can be different for the same wheel made at different times.

 

Once you know the size of your vehicle's hub + the size of the centre of your rim, we can help you with Hub Centric Rings.You need BOTH measurements to order Hub Rings. Once you know both measurements, Hub Rings are available at all Canadian Performance Improvements Locations. We also have Lug Nuts, McGard Wheel Locks, Valve Stems, Wheel Spacers and all the parts you need to help you fit your wheels on your car.

 

Hub Ring Install

What is the purpose of hub centric rings? Are they required?

These rings help to keep the wheel precisely centred on the vehicle hub as the lug hardware is torqued down. Keeping the wheel precisely centred on the hub when it is mounted will minimize the chance of a vibration.

Centre bore is the hole in the middle of the wheel on the hub of the car. Wheels are manufactured in huge numbers, many are not made with any vehicle's centre bore in mind, hence hub rings are always recommended.

The centre-bore of a wheel centres 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 hardware is torqued down. Some wheels are vehicle model specific and will come from the factory with a bore machined to match that vehicle.

 

Hub centric ring installation

Hub rings are extremely easy to install, just follow the instructions!

Clean the center bores of the rims and the wheel hubs of the car. Push the centric rim to the center bore of the rim. It is important to ensure that the ring is properly positioned. When the centric ring is attached to the rim, install the wheel onto the car.

  • Lift your car with a floor jack 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.

 

  • Break the lug nuts off the wheel using a four-way tool. 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.

 

  • 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 on. Check to ensure the ring is fully seated on the hub to complete the installation. Install any remaining hub rings in the same way.

 

Non-Hub Centric Wheels like the Cragar SS

Are all wheels Hub Centric?

NON-HUB CENTRIC WHEELS: 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. Torquing is crucial to twisting the lug components with the vehicle on the jack as this process allows the bolts to centre the rim and torque down. 

 

Once you know the size of your vehicle's hub AND the size of the centre of your rim, we can help you with Hub Centric Rings. You need BOTH measurements to order Hub Rings. Once you know both measurements, Hub Rings are available at all Canadian Performance Improvements Locations. We also have Lug Nuts, McGard Wheel Locks, Valve Stems, Wheel Spacers and all the parts you need to help you fit your wheels on your car.


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