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Like what I show you in my last two articles, the 2022 BMW i4 wheel spacer is the easiest and cost-effective way to get the perfect fitment from your new or stock wheels and tires. So, in this article, I will talk about the hub-centric design of the 2022 BMW i4 wheel spacers. What should you know before buying 2022 BMW i4 hub-centric wheel spacers?
You know what, there are four main types of wheel spacers on the market. Bolt-on hub-centric, bolt-on lug-centric, slip-on hub-centric and slip-on lug-centric. Some of them are safer and suitable for your BMW i4 than others, and it all depends on how the spacers distribute the car’s load.
What Are Hub-Centric Wheel Spacers?
Hub-centric wheel spacers are designed to center with the axle hub. They have a precise center bore the matches the wheel hub diameter, and have the multi-stage (the center ring) to transmit the car weight to the axle hub like the original design. This means that the hub-centric wheel spacers keep all the original automaker’s designs intact, does not change the construction of wheel assembly to bear the weight, but simply widens the distance between the axle head and the wheel hub.
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The lug-centric wheel spacers are designed to make the lug-bolts to the center, to bear the whole vehicle’s weight. You know, some bad road situations may cause an unusual force to the tires, like some large turbulence of the vehicle. The 5 lug bolts fix the wheel together. Under the influence of strong shearing force, as long as one lug bolt is deformed or broken, the wheel will no longer rotate with the axle hub as the center. If this problem has not been found, then the vehicle is likely to have a traffic accident on the highway or mountain road. So, the hub-centric design wheel spacers are safer than the lug-centric spacers.
What Are 2022 BMW i4 Hub-Centric Wheel Spacers Made Of?
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There are many 2022 BMW i4 hub-centric wheel spacers in the market that are composed of steel or aluminum alloy. For the performance vehicles, they need lightweight accessories to match their handling. So, many high-level spacers are made of 6061-T6 aluminum, which weighs huge less than steel and provides standard strength for its intended use. The variant 7075-T6 aluminum is better, it can provide more strong and lighter for its intended use.
When talking about safe wheel spacers for the BMW i4, material selection can be very important. Both forged 6061-T6 and 7075-T6 feature good hardness and toughness, excellent corrosion resistance, and wear resistance characteristics. Since the wheel studs and lug nuts use a clamping force to secure the spacers and wheels. If the lug bolts are not strong enough to support this force, they will likely be bent by road impacts. The provided lug bolts of BONOSS 2022 BMW i4 hub-centric wheel spacers are made of high-strength forged SCM440 alloy steel. They have achieved ISO standard grade 12.9, tensile strength≥1,220Mpa, ultimate tensile load≥152,000N, hardness (HV)≥395, NSS≥500H. With higher strength, your Bimmer wheel spacers can bear more force without breaking.
