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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > Noob question: Using 47ET at the back, could I go down?
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      05-08-2024, 06:44 AM   #1
morcsekovszky
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Noob question: Using 47ET at the back, could I go down?

Hello!

I bought the car, an F32 with the following setup:

For the tires.
225/40 R19 -front
255/35 R19 -back

For the rims.
8Jx19 ET36 -front
8.5Jx19 ET47 -front

Im planning to buy new rims for the summer, but with ET47 its really hard to find one.
Could I go down to like ET40-45 for the back? Will the tires fit, will the geometry be bad? -What would you guys do, maybe new set of tires?

Sorry for beginner question, tried to search the web, but there are some questionable and different answers everywhere.

Good day
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      05-08-2024, 06:46 AM   #2
mbanks21
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You could go down to the 20s it wouldn't matter unless you're lowered
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      05-08-2024, 06:49 AM   #3
morcsekovszky
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Quote:
Originally Posted by mbanks21 View Post
You could go down to the 20s it wouldn't matter unless you're lowered
Im lowered a bit, but not that flush that it would be a problem.

So as for the tires, it doesent change a bit just how it sits on the car, is that correct?

Also, after I do like ET43-44-45 etc.. I should align the car and all fine, right?
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      05-08-2024, 06:52 AM   #4
mbanks21
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The "et" is the offset which is basically just the distance from the hub to the inner edge of the wheel. Et37 would be like putting a 10mm spacer on the stock wheel which people do all the time. No alignment is needed
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      05-08-2024, 11:22 AM   #5
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Alright I understand now

I actually have spacer, but its still not sticking out crazy so these just gives some plus mm. Epic, thanks man, really appreciate it.
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