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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > Will Apex EC-7 18x9 et31 fit on a 340??
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      09-04-2018, 11:52 PM   #1
chiinm
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Will Apex EC-7 18x9 et31 fit on a 340??

I have a set of Apex EC-7 18x9 et31 left over from my M3. Currently, I have a 340xi. Would these wheels fit with a 235/45/18 tire?

Thank you!
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      09-05-2018, 12:34 AM   #2
alohasurftoad
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It will fit and you should run 255 /40/18
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      09-06-2018, 02:34 PM   #3
chiinm
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Quote:
Originally Posted by alohasurftoad View Post
It will fit and you should run 255 /40/18
did you mean 235?

Thx
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      09-06-2018, 02:45 PM   #4
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255 is proper tire fitment for a 9" wheel. But it would be pretty aggressive for our cars. The tire will most likely poke in the front and the back.

What is your suspension setup?
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      09-06-2018, 02:52 PM   #5
chiinm
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Quote:
Originally Posted by kern417 View Post
255 is proper tire fitment for a 9" wheel. But it would be pretty aggressive for our cars. The tire will most likely poke in the front and the back.

What is your suspension setup?
Stock suspension...sticks out a little with the 245 set up I have from the M3 (245/45) which rubs in the front with turning. From what I researched, 235 is the minimum for a 9" wheel (225 will have a little stretch).
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      09-06-2018, 07:03 PM   #6
alohasurftoad
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Quote:
Originally Posted by chiinm View Post
did you mean 235?

Thx
i meant 255. as kern417 said it is aggressive and will poke. 255/40 is lower diameter than 245/45 and it should not rub while turning. i am basing this on someone running 9.5" +35 with 255/35/19 saying he's not rubbing and peeps running M3/4 513M with 18x9 +29 on 255/40/18 up front, on F3x platforms

you can stretch 235/45/18 on the 9" if you'd rather, though

Last edited by alohasurftoad; 09-06-2018 at 07:08 PM..
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