Project Description

A few weeks ago, this BMW 3 Series 330i G20 installed BONOSS Forged Lightweight Plus Wheel Spacers, front/rear 12mm (0.5 inch), PCD 5×112, CB 66.6 together with BONOSS Forged Grade 12.9 Extended Wheel Bolts. Both of them are specifically designed to fit this vehicle and enhance the steering performance, meanwhile, achieving a remarkable exterior. They match perfectly with the BMW wheels, thanks to the CNC 0.02mm tolerance manufacturing. And the hub centric design makes a solid connection between wheel and axle hub, no vibrations, fewer stress loads and more service life range.


This BMW 3 Series 330i G20 is a high-performance luxury sports sedan. The potent power, grand interior, and good fuel economy make it stand in the top place of luxury sports car rankings. The all-new G20-generation is powered by a 255-horsepower, turbocharged 2.0-liter four-cylinder engine, delivering 190kW at 6500rpm, a maximum torque figure of 400Nm, an eight-speed automatic transmission, offering smooth, sharp shifts. It provides an enjoyable and stable drive experience, effortless to deal with different road situations.


What do wheel spacers do for BMW 3 Series 330i G20?

The wheel spacers are a kind of vehicle wheel accessories used to create proper clearance for correcting the wrong offset. That means they allow for installing bigger wheels and tires as well as larger brake calipers without breaking the fender. For decoration reasons, wheel spacers push the wheel out to flush(or past) the fender, achieving an aggressive look. And the owner of this BMW 3 Series 330i G20 would like to mount new aftermarket wheels with a bigger CB diameter. Installing proper sizes of wheel spacers can correct the ET, improving handling performance.

BONOSS Forged Grade 12.9 Extended Wheel Bolts

After installing wheel spacers, the stock wheel bolts will not be long enough, reducing the number of laps for threading. In the case of intense driving, it will cause kinds of security issues. Thus, need a new set of extended bolts. High-quality bolts for a high-end vehicle. BONOSS Forged Grade 12.9 Extended Wheel Bolts applied SCM440 high strength steel material, which provides extremely high performance. The thread is perfectly fit the OEM hub, ensuring a firm fastening. The tensile strength is higher than 1200 Mpa, meaning they can bear numerous stress cycles without damage.


Addtional 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 BMW 3 Series 330i G20 uses front/rear 12mm (0.5 inch), PCD 5×112, CB 66.6.
  • 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. 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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