Installing wheel spacer 4 holes is one of the easiest and simplest ways to boost your car’s handling. By moving the wheels and tires outwards, they provide better traction, handling, and stability. The wheels are set apart more, providing better traction. With these 4-lug wheel spacers, you will experience better control especially when cornering.
But there is one question arising: “Are wheel spacers safe to use?” The answer is a resounding yes—especially when they are high-quality and installed properly. In this article, we’ll explore whether wheel spacers 4 holes are safe to use, what factors affect their safety, and some considerations to keep in mind when installing them.

Is It OK to Use Wheel Spacer 4 Holes?
Yes, it is safe to use wheel spacer 4 holes. Wheel spacers are mechanical components that push your wheels away from the vehicle assembly hub. When properly torqued, the wheel bolts apply a clamping force to keep everything in the right place. The hub-to-wheel connection doesn’t change. As long as you torque each lug bolt correctly, high-strength 4-lug spacers won’t break or fail easily.
What Wheel Spacer 4 Holes Are Safe?
Many tire technicians agree that proper wheel spacer 4 holes are a good idea to fit wider wheels and encounter clearance issues. The safety of spacers depends on various factors, including the spacer quality, installation, and the driving conditions. The safest wheel spacers 4 holes should be:
- Sizes: precise bolt pattern and center bore diameter
- Material: forged 6061-T6 / 7075-T6 aluminum alloy
- Types: hub-centric types
- High-strength wheel studs and lug nuts
- Come with warranty and customer services

Why BONOSS Wheel Spacers 4 Holes Stands Out?
When selecting wheel spacers 4 holes, BONOSS excels in safety and performance. With the advanced technology and unmatched quality, BONOSS offers several key advantages that make their spacers a top choice.
1. Useful Active Cooling Function
With the same price as most rim spacers, BONOSS forged active cooling wheel spacers 4 holes provide an active cooling function. Distributed in petal shape, these grooves allow the external cold air to flow continuously inside the wheel spacer when it rotates.
The air takes away the heat to actively dissipate heat for the brakes. Such BONOSS forged active cooling wheel spacers 4 holes improve the cooling efficiency, reducing brake thermal decay, and improving road safety.
2. Aerospace-grade Aluminum Materials
All BONOSS forged active cooling wheel spacers 4 holes are made of forged 6061-T6 or 7075-T6 billet aluminum alloy. The tensile strength is up to 572 MPa and the yield strength is up to 503 MPa (as strong as aviation aircraft). High tensile strength gives it strong resistance to being pulled apart, making it resistant to bending and breaking.
3. Optimized Hub-centric Design
BONOSS forged active cooling wheel spacers 4 holes come with multi-stage hub-centric rings. The hub-centric metal ring is machined to be multi-layers, and the bevels fit for the corresponding hub flange, which eliminates any possible gaps. This helpful to reduce the chances of vibrations.

Frequently Asked FAQ
Q: Do wheel spacers 4 holes wear out tires?
A: As long as you install them properly, spacers should not cause any uneven tire wear.
Q: Are wheel spacers 4 holes easy to install?
A: Installing 4-lug wheel spacers is pretty easy. The installation process normally can be finished within an hour.
Final Verdict: Upgrade Your Car with BONOSS
From innovative active cooling benefits to certified materials and precise manufacturing, BONOSS forged active cooling wheel spacers 4 holes are engineered to enhance your driving experience with safety, strength, and reliability. Discover the difference with BONOSS—built for drivers who demand excellence.
(Hi, I’m Kevin Brian, a 30-year mechanical engineer. For a better user experience, this article is original content uploaded by humans. It is not generated by Artificial Intelligence (AI) Models or tools.)


