Custom Wheel Fitments

Do you have a classic vehicle but don't see any aftermarket wheel fitments for it on our website? Looking for aftermarket rims that you know we carry, but they aren't listed for your vehicle? We get calls all the time from people who are trying to fit a wheel to their vehicle for which we don't have fitment data. However, you're not out of luck!

You always want to check, before you do anything else, to see if we have wheel fitments for your vehicle - you might be surprised.

  • Visit our Upgrade Garage 
  • Enter your vehicle's information in the drop down menu
  • Select "Wheels"

Bolt Pattern (Bolt Circle):

You will need to figure out the bolt pattern of your hubs, which may be found online or by measuring.

To measure your bolt pattern, establish an imaginary circle that passes through the middle of each stud and measure the diameter of the circle. For hubs with an even number of studs, simply measure across from the middle of one stud to the middle of its opposite.

NOTE: When measuring a 5-lug wheel, the measurement is only an estimate unless accurately measured using a bolt pattern gauge. A bolt pattern gauge is a specialty tool and is not widely available. 

Wheel Size:

You will also need to know the diameter, width, offset and backspace of the wheels. Backspace measures the distance from the mounting plate of the wheel to the back edge of the wheel, where offset measures the distance from the mounting plate of the wheel to the center of the wheel barrel. The higher the backspace, the further back into the fender well it will sit. To help you understand offset and backspacing, take a look at the diagram below:

Centerbore:

Centerbore is the machined opening on the back of the wheel that 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 hardware is torqued down. Keeping the wheel centered on the hub when it is mounted will minimize the chance of a vibration. Certain wheels are vehicle model specific and will come from the factory with a bore machined to match that vehicle. Some wheels are designed to fit several vehicle models and will use a centering ring system to reduce the bore size to match the hubs of different vehicles. These rings keep the wheel precisely positioned as the lug hardware is torqued down.

Some wheels are non-hub centric by design. These are known as lug centric wheels. With these wheels it is critical to torque the lug hardware with the vehicle on jack stands, off the ground. This allows the nuts or bolts to center the wheel and torque down without the weight of the vehicle pushing them off center.

Wheel Weight Capacity:

Just like tires, all wheels have a maximum load. If you have a heavy vehicle like a truck, you may need to try and locate the GAWR (Gross Axle Weight Ratio) and make sure that for each axle, the max load of two wheels will hold the load of the vehicle.

To learn more about which wheels will fit your vehicle, read "How We Know What Fits."

Comments

Thursday, May 21, 2015 by Matthew Limeberger

I purchased tires from your website so I could put back on my aftermarket rims. I have got the tires balance an checked my alignment an my car still shakes an a tire shop said it's either the tires are bad or it might be because my rims didn't have the hub centic rings which I dont believe they did when I had them on last time with other tires. Can u help me find the hub centric ring size for my rims? I have been unsuccessful in finding it so I can order them an hopefully stop the vibration when I'm driving an eliminate the possibility that I received bad tires from you guys. Any help would be much appreciated. The rims are TIS15 size 22". Thanks again....
Thursday, May 21, 2015 by Turk T

Matthew,
With the sheer number of different configurations of hub bores among the various wheel brands, hub sizes on different vehicles, and centering ring contours, we do not have rings that we can recommend for wheels we do not sell.
That being said, a centering ring is not necessary to determine if the tires are defective. You can go to a tire shop that has Hunter Road Force Balancing capabilities, and they will be able to determine if it's the wheel or the tire that is causing your issue! To learn more about the Hunter Road Force balancing, click on this link or copy it into your browser's address bar:

http://www.tirerack.com/wheels/tech/techpage.jsp?techid=109&&affiliate=EB8
Wednesday, May 10, 2017 by CHARLIE L RODRIGUEZ

Can you tell me if part number MR30478558700BML is the bore size 110mm or 116.5mm?
Friday, May 12, 2017 by Turk Turkleton

Hello CHARLIE,

MR30478558700BML has a center bore of 117mm.

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