Using 3mm spacer kit is a good solution for wheel fitment. If you need to slightly adjust the offset to make wheels flush with the fenders, then 3mm spacers are a good idea. They’re subtle and don’t hurt anything. Besides, wheel spacers increase the clearance between the wheel and the brake rotor.
This is helpful to keep the factory wheels from hitting the bigger brake calipers. By increasing the track width, 3mm wheel spacers boost the handling of curves and swerving, which helps your vehicle perform better on the road. Many people wonder if 3mm spacer need to be hub-centric and if they are safe to use. In this discussion, we will examine all of these questions.

Does Hub Centric Matter for 3mm Spacers?
Typically, 3mm wheel spacers are too thin to machine hub-centric rings. So, most 3mm spacers are lug-centric. Since many vehicles come with enough wheel hub protrusion to support the wheels, hub-centric is not a MUST option for 3mm spacers. Assuming your wheel hub height is 12mm, if you add a 3mm spacer, the remaining hub height that contacts the wheel will be 9mm (12–3=9).
3mm Spacer Option: Top 5 Expert Picks
1. Proper Sizes:
Using the correct size of wheel spacers is vital to avoid rubbing or tire wear. For most cars, you can use 3mm to 30mm without compromising safety. Besides, make sure the spacer bolt pattern (PCD) and center bore (CB) precisely fit your vehicle hub assembly.
2. Quality Materials:
When choosing safe 3mm wheel spacers, aluminum types come as a priority. Forged aluminum wheel spacers are not only strong but also incredibly corrosion-resistant.
3. Reputable Brands:
Stick with reputable brands that have a proven track record in this industry. Brands that invest in rigorous testing and quality control are more likely to provide safe and reliable wheel spacers.
4. SGS TÜV Test Reports:
The SGS TÜV test reports ensure the spacers meet safety and performance standards. The best 3mm wheel spacers should provide proper SGS TÜV performance test reports.
5. Product Warranty:
Most genuine brand 3mm wheel spacers usually come with a warranty. The longer the warranty, the better.

Who Sells the Best 3mm Spacer Kit?
There are various wheel spacers in the automotive market, but the BONOSS brand stands out in terms of precision and performance. With over 17 years of manufacturing experience and 1800+ drawing updates, BONOSS provides the best 3mm wheel spacers. There are several key advantages that make their spacers a top choice.
1. Extreme Lightweight Benefits
As we all know, the lighter the unsprung weight is, the better the handling capabilities. BONOSS forged lightweight plus 3mm spacers are machined with “Hollow Carved” holes. Compared with the previous production, they are at least 20% lighter. The weight of these BONOSS wheel spacers is quite insignificant, and they won’t damage any suspension parts.
2. Excellent Anti-corrosion Materials
BONOSS forged lightweight plus 3mm spacer kit is made of high-strength 6061-T6 and 7075-T6 aluminum alloy materials. These forged aluminum spacers have better thermal conductivity than steel ones. They are much lighter and much better in corrosion resistance.
To further prevent corrosion in wheel spacers, BONOSS applies a black hard anodizing surface treatment. It is ideally suited for aluminum to improve corrosion resistance. This process makes BONOSS forged lightweight plus 3mm wheel spacers more durable and corrosion-resistant.
3. Worry-free 10-year Warranty
Every genuine BONOSS forged lightweight plus 3mm spacer is covered by a 10-year warranty. This 10-year warranty protects the customer’s interest and ensures product quality and safety. It is worry-free to use BONOSS wheel spacers.
Final Summary: Choose BONOSS, Choose Safety
From innovative lightweight benefits to certified materials and precise manufacturing, BONOSS forged lightweight plus 3mm spacer kit is 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.)



