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Technical Topics Wheels and Tires HELP with Factory rim specs

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      03-10-2024, 06:15 AM   #1
G20agba
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HELP with Factory rim specs

I have a 2020 bmw 330i base model with 18” 780 wheels. Does anyone know the factory wheel specs for it? My door sticker says 225/45/18. Did some research regarding factory wheels and found some info: 18x7.5j ET25 and 18x8.5j ET40. But i dont know if mine comes with 18x7.5 ET25 all around or with 18x8.5j ET40 rear.
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      03-10-2024, 09:06 AM   #2
prostcfc
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If staggered setup, rear tires should be wider than front, so your setup should be square.
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      03-10-2024, 09:22 AM   #3
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If staggered setup, rear tires should be wider than front, so your setup should be square.
Does that mean my factory rims are 18x7.5j ET25 all around?
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      03-10-2024, 09:29 AM   #4
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Quote:
Originally Posted by G20agba View Post
Does that mean my factory rims are 18x7.5j ET25 all around?
Yes. For comparison on my M340, my stock wheels are 19x8" ET25 square.
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      03-10-2024, 03:14 PM   #5
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Originally Posted by prostcfc View Post
Yes. For comparison on my M340, my stock wheels are 19x8" ET25 square.
Thank you. I wasnt sure if my rims were staggered with square tires or square rims with square tires.
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