Project Description


A wider track for more stability! Late last Monday, this Audi A4 B9 installed BONOSS Forged Lightweight Plus Wheel Spacers, front/rear 15mm (0.6 inches), PCD 5×112, CB 66.5 together with BONOSS Forged Grade 12.9 Extended Wheel Bolts. Wheel spacers can widen the track of the vehicle, leading to more stability and better handling performance. That is the reason why they are often used in many racing cars. Also, they make a car look better by relocating the wheel outwards to a more visually aggressive position. In this case, the owner chooses spacers made of premium 7075-T6 billet aluminum material with the forged process, whose hardness is as good as steel, but the weight is much lighter. Besides, their strength and toughness are also good. (Thanks JIANGYI for Supporting.)

As a highly rated street sedan in the segment marketplace, the Audi A4 B9 is often modified by a lot of enthusiasts. One of the easiest ways to get a better stance and get a wide track as you start a modified build is to add wheel spacers. The modern design, potent power system, lavish tech features make the A4 B9 to be a great drive car that is as smooth as it performs. And the spacers enhance its exterior and make it outstanding among the crowd.


BONOSS Forged Lightweight Plus Wheel Spacers are designed to maximize the performance of your vehicle, giving it more stability, better cornering, and an awesome exterior. The body of the spacers applied advanced black hard coat anodizing technology which is a proven very useful electrochemical coating process that provides both predominant corrosion-resistance durability and an excellent appearance. These wheel spacers are made by modern CNC 0.02mm tolerance machining to the highest possible quality and are fully SGS, TUV ISO standard certificated

BONOSS Forged Lightweight Plus Wheel Spacers

What size wheel bolts do I need?

Any time you run wheel spacers, extended wheel bolts are a must option for properly fastening the wheel to the vehicle hub. Without the proper thread length, the stock lug bolts will not allow penetrating the vehicle hub threads completely which can cause car shaking or safety risk. Generally, it’s easy to figure out the correct size of bolt, all you need to do is to measure the length of your stock bolt then add the thickness of the required spacer, and that will be your ideal extended bolt length. In most cases, you need a bolt that is longer by the thickness of the spacer, for example, your stock bolts are 27mm, the desired spacer is 15mm, then the right size of extended bolts would be 42mm.


Additional Information:

  • BONOSS wheel spacer thickness can be customized flexibly, which is compatible with most vehicles. Thus, if you would like different sizes of wheel spacers, feel free to contact us. This Audi A4 B9 uses front/rear 15mm (0.6 inches), PCD 5×112, CB 66.5.
  • The extended bolts are spacer structure design, which effectively eliminates the bolts loosening and abnormal sound caused by the PCD hole coaxially deviation between hub and shaft head. This Audi A4 B9 uses M14x1.5 thread ball seat bolts. If you would like a set of extended bolts, please ensure the seat type of the bolts is suitable for threading tightly. And, if you don’t know the proper length, you are welcomed to contact our tech staff freely.
  • Each BONOSS product is printed with the logo of “BONOSS”. This offers an easy method to distinguish other fake and inferior products. At the same time, it also provides a way to find our after-sales service. Our products are 10 Years Limited Warranty (new products with 12 months warranty), which is an excellent and cost-effective choice for your car upgrades.

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