In most cases, 1-inch spacers are legal in most countries and regions. For example, installing wheel spacers is legal across the USA. As long as you don’t make the wheels stick out too much, it is safe and legal to use wheel spacers. And 1-inch wheel spacers are just enough for most sedans and SUVs. They are ideal for improving the aesthetic and enhancing handling without making the wheels stick out too far.

That is what makes 1-inch spacers popular for those who want a subtle and beneficial modification. Apart from the sizes, safety is very important. The good news is that high-quality spacers, particularly hub-centric ones, are generally safe. Investing in high-quality spacers is key to safety. The legal and safe 1-inch spacers should be:

  • Proper thickness and PCD sizes
  • Precise hub-centric construction
  • Made of high-quality materials
  • Good corrosion resistance ability
  • Customer service and warranty

Are 1-inch Spacers Legal BONOSS Forged Active Cooling Adapters Hubcentric Spacers Before and After Example CHZ (3)

How to Keep 1-inch Spacers Safe and Legal?

Choosing the Right Size:
Choosing the right size for wheel spacers can transform your car’s look and functionality, whether you’re after a mean stance, better handling, or more clearance for larger tires. Just remember to consider factors like tire size, lift kit compatibility, and how you plan to use your cars. With the right spacer size and quality components, you can enjoy the benefits of enhanced stability, a broader stance, and a more customized driving experience.

Using Hub-centric 1-inch Spacers:
Using hub-centric spacers is highly recommended for any vehicle modification. They fill the gap between the wheel’s center bore and the hub’s diameter, providing a snug fit. This is crucial because wheels must be properly aligned with the hub to maintain balance and prevent wobbling. For anyone considering 1-inch spacers, prioritizing the use of hub-centric ones will contribute to a safer and more enjoyable driving experience.

Are 1-inch Spacers Legal BONOSS Forged Active Cooling Adapters Hubcentric Spacers Before and After Example CHZ (2)

Proper Installation:
No matter which size you choose, taking the time to install spacers correctly and opting for quality materials will ensure a safe and effective upgrade. Once everything is in place, use a torque wrench to tighten the lug nuts to the manufacturer’s specifications. This ensures a secure and safe fit.

High-quality Materials:
Reputable brands use materials like aerospace-grade aluminum, which provides the strength needed to withstand the forces exerted during driving. For example, all BONOSS forged active cooling wheel spacers are made of top-quality forged 6061-T6 and 7075-T6 aluminum alloys. The tensile strength is up to 572 MPa and the yield strength is up to 503 MPa (Al7075-T6). The higher the strength, the better the performance.

For racing, drift, and off-roading events, AL7075-T6 wheel spacers are the best option. If you must consider the costs of the spacers, AL6061-T6 spacers are the perfect solution. Because they are just strong enough for daily driving. BONOSS tests each spacer meticulously to make sure they give the biggest safety or reliability possible. So, you can use BONOSS forged active cooling 1-inch spacers on the highway with no problem.

Are 1-inch Spacers Legal BONOSS Forged Active Cooling Adapters Hubcentric Spacers Before and After Example CHZ (1)

Can You Pass an Inspection with 1 inch Spacers?

As long as you keep the wheels and tires still covered by the fenders, you can pass an inspection with 1-inch spacers. Always choose authentic brand wheel spacers. Because reputable brands invest considerable time, effort, and resources into research, development, and testing to ensure that their products meet rigorous standards.

For example, BONOSS takes its products to the third-party independent testing agency SGS, TÜV for quality inspection. The provided BONOSS forged ISO grade 12.9 wheel studs and ISO grade 10 lug nuts are certificated by over 66 SGS TÜV test reports. In Europe, wheel spacers are allowed as long as they are TÜV certified. So, it is worry-free to use wheel spacers with SGS TÜV test reports.

Kevin Brain
Mechanical Engineer

Hi, I’m Kevin Brian, a 30-year mechanical engineer who loves working with automotive modifications. I am delighted to share real information about wheel spacers and wheel nuts. For example, I wrote this article based on my experience. It is original content, all typed and uploaded by myself. NOT generated by AI tools. Hope I can help you understand and use automotive wheel spacers and wheel nuts better.