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KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK! |
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01-12-2023, 04:46 PM | #23 | |
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Why would you need wheel spacers? Just get wheels with similar offset as the stock wheels. Here's the wheel specs for the stock wheels. https://www.bmwoemwheels.com/en/rim-...heel-style-219
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01-12-2023, 06:48 PM | #24 |
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When you step down to 18" from 19", you gain sidewall, not lose it.
Spacers won't affect tires or contact patch or sidewall stiffness or any of that. Mostly looks, but also a slightly wider track. or to keep a wheel/tire from hitting a strut/spring/caliper. 245/265 is tried and true, though E46 CSL did 235/265 and many people go with that or 245/275. The numbers you see are a bit meaningless as each tire brand and model vary in their actual width. Plus tires vary in their construction i.e. stiffness. Tire width will slightly affect wheel fitment, and conversly, straightline grip. Sidewall stifness for lateral grip. It'll be more important to chose the tire you want for the type of driving you do than worry about 235 vs 245 vs 255 etc. Pick a general size that fits the wheels, and 245/265 fits perfectly though 225-245 will fit 8.5" just fine and 255-275 will fit 9.5" just fine. A 245 michelin ps4s can be just as wide as a 255 from another company. Tire rack will tell you the actual dimension of a specific tire.
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