Any time you run 3mm to 20mm BMW wheel spacers, longer wheel bolts are necessary hardware. Because the wheel and tire assembly must be held evenly and securely to the wheel hub by the wheel bolts. Now you have added extra space between the wheel and hub assembly, your OEM wheel bolts can’t provide enough thread for safely securing the wheels.
There is a golden rule: at the minimum, thread engagement length must be equal to or greater than the diameter of the fastener. Giving an example, an M14 wheel bolt would need at least 14mm threads to ensure a safe engagement. As a guideline claims, you need at least 7 turns (preferably 8 turns) from start to torque.
How Long Wheel Bolts Do I Need for BMW Wheel Spacers?
If you don’t replace the rims, then the calculation will be quite simple. Standard BMW wheel bolts are 27mm long, so you can do the math for longer ones. Giving an example, if you install 12mm spacers, then the wheel bolts you need will be: length=39mm (standard 27mm+ 12mm= 39mm).
But it is not that longer wheel bolts are better. You may need to do some calculations. The length of thread engagement means the axial distance through which the fully formed threads of both the nut and bolt are in contact. It is one of the key factors. What really matters is the actual thread length that the wheel bolts can contact with the inner hub lug nuts.
Why BONOSS BMW Wheel Spacers Stand Out?
When it comes to the best BMW wheel spacers for your car, safety and performance should be the top priorities. That’s where BONOSS forged lightweight plus BMW wheel spacers come in. With advanced technology and a commitment to quality, BONOSS offers several key advantages that make their spacers a top choice.
1. Extreme Light in Weight
These BONOSS forged lightweight plus BMW wheel spacers are machined with “Hollow Carved” holes. Due to these hollow holes, the average weight of each spacer is more than 20% lighter than the previous-gen product. Adding such a small, lightweight component won’t affect the speed or hurt the suspension parts.
2. Top-quality Materials
For the ultimate performance, BONOSS has been offering forged aluminum alloy wheel spacers in the aftermarket for over 10 years. Starting from a billet of 6061-T6 or even a special 7075-T6 aluminum, these aircraft quality alloys are forged with up to 3000 tons of pressure. These BONOSS forged lightweight plus BMW wheel spacers won’t break even under hard driving.
3. ISO Grade 12.9 Wheel Bolts
High-strength wheel bolts ensure a strong wheel-spacer-hub connection. BONOSS provides ISO grade 12.9 wheel bolts for safely securing your BMW wheel spacers. These wheel bolts are made of high-strength forged SCM440 alloy steel. They perform well in many tests: tensile strength≥1,282 MPa, ultimate tensile load≥152,000 N, and NSS≥192H.
Frequently Asked FAQ
Q: Can you daily drive with BMW wheel spacers?
A: As long as you torque them properly, you can daily drive with high-quality BMW wheel spacers.
Q: Do BMW wheel spacers make wheels stick out?
A: Wheel spacers reduce the offset. The lower the offset value, the farther the wheels will sit outside. For example, a wheel with a 12mm spacer will stick outside more than a wheel with no spacer.
Final Verdict: Elevate Your Car with BONOSS
With these outstanding advantages, it’s clear that BONOSS forged lightweight plus BMW wheel spacers offer exceptional safety, durability, and professionalism. Whether you’re upgrading the aesthetics or improving the handling, choosing BONOSS ensures that you’re getting a product that meets the highest standards of performance and quality. Your car deserves the best.
(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.)
