SpacerHub Fitment & Installation Guide

The Right Information Before You Buy

Wheel spacers are not a universal product. The correct spacer depends on the exact specifications of your vehicle, wheels, and hardware.

Instead of relying on guesses, social media comments, or information from another vehicle, use the following information to determine your fitment.

1. Identify Your Vehicle

Start with the exact:

• Year

• Make

• Model

• Trim or specific configuration

Two vehicles that look similar can have completely different wheel specifications. Always verify the specifications for your exact vehicle.

2. Confirm Your Bolt Pattern / PCD

The bolt pattern, commonly called PCD, is one of the most important measurements.

It identifies the number of mounting holes and the diameter of the bolt circle.

Examples include:

• 4x100

• 5x100

• 5x112

• 5x114.3

• 5x120

• 6x135

• 6x139.7

• 8x170

The spacer must be designed for the correct bolt pattern for your application.

Never assume that a spacer fits because the vehicle or wheel looks similar to another application.

3. Verify the Center Bore

The center bore is the diameter of the center opening on the wheel, spacer, or vehicle hub.

For example:

5x114.3 — 64.1mm center bore

Both measurements matter.

Having the correct bolt pattern does not automatically mean the spacer will fit correctly.

A proper fit requires the center bore and hub interface to be compatible with the application.

4. Determine the Spacer Thickness

Spacer thickness determines how far the wheel moves outward from its original position.

Common sizes include:

5mm • 10mm • 15mm • 20mm • 25mm • 1" • 1.5"

Choosing thickness should not be based only on appearance.

The correct thickness should take into account:

• Wheel offset

• Wheel width

• Tire size

• Suspension clearance

• Brake clearance

• Fender clearance

• Available thread engagement

• Spacer design

A larger spacer creates a greater change in wheel position and requires careful consideration of the complete setup.

5. Know Your Wheel Specifications

If you're installing aftermarket wheels, collect the complete wheel specifications before ordering.

You should know:

Wheel Diameter
Example: 18", 20", 22"

Wheel Width
Example: 8", 9", 10"

Offset
Example: +35, +45, -12

Bolt Pattern / PCD

Center Bore

Wheel diameter alone is not enough to determine fitment.

For example, two 20-inch wheels can have different widths, offsets, and center bores and therefore sit completely differently on the same vehicle.

6. Check Stud & Lug-Nut Specifications

This is an area customers should never overlook.

Depending on the spacer design, your application may use:

• Factory wheel studs

• Extended studs

• Spacer-integrated studs

• Wheel bolts

• Open-end lug nuts

• Different thread sizes

The hardware must be compatible with the vehicle, spacer, and wheel.

There must also be adequate thread engagement where required.

Do not assume the factory hardware is automatically correct after installing a spacer.

7. Check Wheel & Spacer Clearance

Before operating the vehicle, verify that the complete assembly has adequate clearance.

Check the area around:

• Brake calipers

• Suspension components

• Struts

• Control arms

• Inner fender

• Outer fender

• Wheel studs

• Tire sidewalls

The wheel should mount properly and the appropriate mounting surfaces should sit fully flush.

If something does not look correct, stop the installation rather than attempting to force the components together.

8. Test-Fitting When You Are Unsure

If you are uncertain about your fitment, a careful test fit can help identify compatibility issues before completing the installation.

Install one spacer at a time and secure it sufficiently for a stationary fitment check. Carefully position the wheel and verify:

• Bolt pattern alignment

• Center-bore compatibility

• Wheel seating

• Stud and lug-nut clearance

• Brake clearance

• Suspension clearance

• Fender and tire clearance

A test fit is only for checking compatibility.

Do not drive the vehicle with a loosely installed or improperly torqued spacer or wheel.

If anything appears incorrect, remove the components and contact SpacerHub or a qualified automotive professional before continuing.

9. Installation Torque Matters

Correct fitment is only part of the installation.

Wheel and spacer hardware should be tightened according to the appropriate manufacturer specifications using a properly calibrated torque wrench.

Do not guess the torque specification.

The correct specification may depend on the vehicle, hardware, and spacer design.

After installation, follow the applicable manufacturer's recommendations for inspection and re-torque procedures.

10. Inspect Before Driving

Before operating the vehicle, perform a final inspection.

Confirm that:

• The spacer is seated correctly

• The wheel is fully seated

• All required hardware is installed

• Hardware is properly tightened

• Nothing is contacting the wheel or tire

• There is sufficient clearance

• The tire is not rubbing

• No components appear damaged

If you notice vibration, unusual noise, looseness, rubbing, or any other abnormal behavior, stop driving and have the vehicle inspected.

11. Don't Rely on Someone Else's Fitment

One of the biggest mistakes customers make is assuming:

"It fits their car, so it will fit mine."

A vehicle can have the same model name but different wheels, trims, brake configurations, suspension setups, or production specifications.

Likewise, two wheels with the same diameter can have completely different offsets and center bores.

Your fitment is your fitment.

Use actual measurements and verified specifications whenever possible.

12. What You Should Have Before Contacting SpacerHub

If you need help determining the correct product, having the following information ready will make the process much easier:

Vehicle

• Year

• Make

• Model

• Trim

Wheel

• Diameter

• Width

• Offset

• Bolt pattern

• Center bore

Spacer

• Desired thickness

• Bolt pattern

• Center bore

• Stud or lug specification

Additional Information

• Tire size

• Suspension modifications

• Brake modifications

• Any existing clearance issues

The more accurate information you provide, the better we can help you identify the appropriate product.

Our Approach to Fitment

At SpacerHub, we believe customers shouldn't have to rely on random information from social media or guess their way through an important purchase.

Our goal is to provide clear, practical, and understandable fitment information so you can make an informed decision.

We manufacture our spacers from CNC-machined 6061-T6 billet aluminum and focus on providing quality products alongside knowledgeable customer service.

We also understand that not everyone starts out knowing what PCD, center bore, offset, or thread engagement means.

That's okay.

Ask questions. Verify your measurements. Understand your setup.

Because the best fitment decision isn't the one that sounds good online—it's the one supported by the correct information for your specific vehicle and wheels.

SpacerHub

Know your numbers. Understand your fitment. Build with confidence.