Project Description


Higher cornering performance! Last Sunday, this Audi A4 B9 installed BONOSS Forged Lightweight Plus Wheel Spacers, front 12mm (1/2″), rear 15mm (3/5″), PCD 5×112, CB 66.5 together with BONOSS Forged Grade 12.9 Shell Type Extended Wheel Bolts. Wheel spacers are used for various reasons. When the offset of wheels is insufficient, wheel spacers would make up the desired offset by pushing the wheels away from the vehicle hub. Having your wheel brought out the ideal distance allows for mounting larger brake calipers without wheel scratching. Hub-centric wheel spacers can make a snug connection between wheel and axle hub, transforming a lug-centric wheel into a hub-centric wheel, meaning elimination of high-speed vibration. (Thanks CAR CLUB 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. Now, let’s see the installation of wheel spacers before and after:


BONOSS Forged Lightweight Plus Wheel Spacers are made by the forging process. Forged aluminum alloy wheel spacers are manufactured from a solid piece of billets. They have undergone continuous intense pressure to be formed. Particularly, forged wheel spacers are one-piece wheel spacers. Due to the continuous stress cycle and process of deformation, the forged wheel spacers become hard and tough. The strength is greatly enhanced. Consistent forging allows achieving the same structural integrity with less material in comparison to cast wheel spacers.


Where to buy extended wheel bolts?

Any time you run wheel spacers, extended wheel bolts are a must option for properly fastening the wheel to the vehicle hub. BONOSS offers a full line of extended wheel bolts to suit your new wheel spacers. They are engineered in shell-type design, which effectively protects the lug bolts from debris and water corrosion. We’re up to date on various thread sizes as well – M14x1.5, M14x1.25, M12x1.5, M12x1.25 and M15x1.25, 1/2-20 UNF so that we can provide wheel bolts for most vehicle models in the market. Our extended wheel bolts are thoroughly tested and inspected, certified by SGS, TUV authoritative institutions, truly guarantee safety.


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 12mm (1/2″), rear 15mm (3/5″), 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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