Whether 10mm spacers or 20mm spacers are better for your 3 Series depends mainly on your actual requirements.
- 3mm to 10mm BMW rim spacers provide just enough wheel clearance to clear bigger brake calipers while keeping the OEM-similar wheel style and handling.
- 12mm to 20mm BMW rim spacers push the wheels and tires out further, which gives your 3 Series a perfect flush wheel stance. This also improves the stability and ride quality.
As long as you install them properly, high-quality BMW rim spacers for 3 Series are safe and reliable. In this blog, we will delve into the top 5 factors of good wheel spacers to help you avoid costly mistakes.
Top 5 Factors of the Best BMW Rim Spacers for 3 Series
Bolt Pattern (PCD):
Only the bolt patterns match can you achieve a proper wheel fitment. Here is a brief guide to the bolt pattern (PCD) and center bore (CB) of a BMW 3 Series (including the old models):
- 3 Series G20 (2018-2025): PCD=5x112mm, CB=66.5mm, Thread=M14x1.25mm.
- 3 Series F30 (2011-2019): PCD=5x120mm, CB=72.5mm, Thread=M14x1.25mm.
- 3 Series E90 (2005-2013): PCD=5x120mm, CB=72.5mm, Thread=M12x1.5mm.
- 3 Series E46 (1998-2007): PCD=5x120mm, CB=72.5mm, Thread=M12x1.5mm.
- 3 Series E36 (1990-2000): PCD=5x120mm, CB=72.5mm, Thread=M12x1.5mm.
- 3 Series E30 (1982-1994): PCD=4x100mm, CB=57.1mm, Thread=M12x1.5mm.
- 3 Series E21 (1975-1983): PCD=4x100mm, CB=57.1mm, Thread=M12x1.5mm.
Fender Clearance:
It’s important to consider the kind of suspension (stock suspension, lowering springs, coilovers, or air suspension). Place a straight edge flush with the outermost wheel edge. Then measure from the wheel edge to the inner fender lip. If the result is 18mm, then using 18mm wheel spacers is fine.
Check Wheel Offset:
Determine your current wheel offset and calculate the difference from the desired offset. Generally, a 20mm wheel spacer will reduce about 20mm offset. The less the offset, the more the wheels will stick out from the vehicle hub assembly.
Consider Usage:
Think about how you will use your vehicle. For daily driving, smaller spacers (5mm to 10mm) are usually sufficient, while performance driving may require larger spacers (20mm to 30mm) to provide additional stability and clearance.
Quality Material
Not all BMW rim spacers are created equally. Always choose genuine brand wheel spacers that are made of forged 6061-T6 or 7075-T6 aluminum alloy. High-quality aluminum rim spacers provides superior strength and rust resistance.
Who Makes the Best BMW Rim Spacers for 3 Series?
BONOSS has the engineering team to measure the specific vehicle more than 3000 times in detail. With 1800+ drawing updates, BONOSS provides the most precise BMW rim spacers for 3 Series. Here are several key advantages that make BONOSS spacers a top choice.
1. Extreme Lightweight Benefits
As we know, a lighter vehicle weight is better for acceleration. BONOSS forged lightweight plus BMW rim spacers come with “Hollow Carved” holes. The average weight of each BONOSS forged lightweight plus spacer is 20% lighter than the previous-gen product. Adding such a small, lightweight component wouldn’t noticeably slow a car down.
2. Aerospace Materials for Improved Strength
BONOSS forged lightweight plus BMW rim spacers for 3 Series are made of 6061-T6 and 7075-T6 aluminum alloys. The 6061-T6/ 7075-T6 aluminum alloy is high-quality aluminum that has excellent corrosion resistance and high toughness. The tensile strength is up to 572 MPa (AL7075-T6). They are strong enough to handle various driving conditions.
3. Precisely Machined for No Deviation
These BONOSS hub-centric BMW rim spacers are CNC machined, precision at 0.02mm tolerance. The smaller the tolerance value, the higher the accuracy, the better the surface quality, and the higher the reliability. The wheels are well-balanced so that there will be less chance of vibrations.
Frequently Asked FAQ
Q: What size socket is a BMW wheel bolt?
A: The most common socket sizes of BMW rim wheel nuts are 17mm.
Q: Will BMW G20 wheels fit E46?
A: With a 5×120 to 5×112 wheel adapter, yes, you can fit BMW G20 wheels on a BMW E46 quickly and safely,
Q: Are BMW rim spacers safe?
A: Numerous successful cases prove that BMW rim spacers for 3 Series are safe to use. Make sure you get high-quality adapters from reputable brand (like BONOSS).
Q: Which is better, wheel spacers or offset wheels?
A: The BMW rim spacers turn out to be a better option to change the wheel offset if your budget is limited.
Final Verdict: Choose BONOSS, Experience Better Handling
With a friendly price, BONOSS forged BMW rim spacers for 3 Series offer more benefits, such as the lightweight plus benefits, knurling surface, disassembly notches and so on. It’s clear that BONOSS forged wheel spacers offer exceptional safety, durability, and professionalism. Your BMW 3 Series deserves the best. Unlock your car’s full potential today!
(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.)
