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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Need offset help



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      03-08-2018, 09:12 PM   #1
KogarsGary
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Need offset help

im getting one hell of a deal on three different pairs of apex wheels, two pairs of the ec7's and a pair of the arc 8's. My problem is that the wheels arent matching i dont think. i drive a 2011 e90 335i. stock height. wondering what the best way for me to do this would be i want to use the ec7's

18x9.5 ec7's offset et22
18x10 ec7's offset et33

19x9 arc 8's offset e38


im new to this and dont quite understand offset, which wheels should go in the front? the rear? will they rub if i dont roll the fenders?

and yes i have searched but havent really found anything i can understand smh
anything helps
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      03-08-2018, 09:47 PM   #2
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At the top of the wheel and tires section there is a calculator. I just put 18x8.5 et20 and with a 235 40 18 it rubbed in front...swapped to a 225 40 18 and the rubbing is gone. BUT with you going an inch wider not sure ANY of those wheels will work up front. I also have 18 x9.5 et20 on the rear with 255 35 18's no rubbing ( I might could get a 265 35 back there too). I think ( my opinion only ) that et 20 in rear with a 9.5 and et 25 in front with a 8.5 is the perfect flush fit.
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      03-09-2018, 12:03 AM   #3
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I'm running 9.5" et33 front with 235 tire and 10" et38 rear with a 275 tire.
Fronts don't rub at all, rears rub a bit.
2010 e90 lci.
Lowered on eibach pro kit.

Stock height the rears should be ok with that offset (et33) depending on tire width of course. Lowered you will rub, nothing a slight fender roll cant fix though

Your fronts will poke out 11mm more then my et33, personally I feel that would be too much for my taste but some others like that aggressive offset. As for a tire I would go either a 235 or 245 front
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      03-09-2018, 08:57 AM   #4
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235 on a 9.5 inch wheel would be quite stretched....its fairly stretched with a 255....not everyones taste. So you might wanna get a few pics of that look before proceeding.
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      03-09-2018, 06:21 PM   #5
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Neither of the 18s are an ideal spec. The 19 square setup would be pretty easy to make work with the right tire size choice. Something in the range of 245/35 and 275/30 or 265/35 should work.
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      03-09-2018, 06:43 PM   #6
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Quote:
Originally Posted by Soonerbilly View Post
At the top of the wheel and tires section there is a calculator. I just put 18x8.5 et20 and with a 235 40 18 it rubbed in front...swapped to a 225 40 18 and the rubbing is gone. BUT with you going an inch wider not sure ANY of those wheels will work up front. I also have 18 x9.5 et20 on the rear with 255 35 18's no rubbing ( I might could get a 265 35 back there too). I think ( my opinion only ) that et 20 in rear with a 9.5 and et 25 in front with a 8.5 is the perfect flush fit.
18x9.5/10.5 ET22 225/255 here on a Pre-LCI E90 with rolled and pulled fenders, -1.9* of camber, and slammed.

OP, you can run the 19s with 255's all around and you'll be able to play with spacers to push them out to be flush. As for the 18s, you could run a 225 in the front and 255 in the rear since you're LCI. Up to you which way you want to go.
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      03-09-2018, 06:54 PM   #7
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Based on that example from SLO, OP should probably state how much fender and alignment work he's willing to do, and how much tire stretch he's comfortable with running.

Fender work, negative camber, tire stretch...those all play a big role in what "fits".
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      03-09-2018, 07:54 PM   #8
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Sorry ive been away for a bit guys, thank you all for the answers, im hoping for no fender rolling and im okay with slight stretching
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      03-09-2018, 07:57 PM   #9
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Quote:
Originally Posted by SLO E90 View Post
18x9.5/10.5 ET22 225/255 here on a Pre-LCI E90 with rolled and pulled fenders, -1.9* of camber, and slammed.

OP, you can run the 19s with 255's all around and you'll be able to play with spacers to push them out to be flush. As for the 18s, you could run a 225 in the front and 255 in the rear since you're LCI. Up to you which way you want to go.
I was under the impression that with these sets of 19s with this offset would be too far out, how would i fix that with spacers? Unless I misunderstood your statement
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      03-09-2018, 07:58 PM   #10
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Quote:
Originally Posted by Emilime75 View Post
Neither of the 18s are an ideal spec. The 19 square setup would be pretty easy to make work with the right tire size choice. Something in the range of 245/35 and 275/30 or 265/35 should work.
Thing is if i had the whole set of the 19s i would use it but im only getting a pair
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      03-09-2018, 07:59 PM   #11
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Quote:
Originally Posted by BM3Rrrr View Post
I'm running 9.5" et33 front with 235 tire and 10" et38 rear with a 275 tire.
Fronts don't rub at all, rears rub a bit.
2010 e90 lci.
Lowered on eibach pro kit.

Stock height the rears should be ok with that offset (et33) depending on tire width of course. Lowered you will rub, nothing a slight fender roll cant fix though

Your fronts will poke out 11mm more then my et33, personally I feel that would be too much for my taste but some others like that aggressive offset. As for a tire I would go either a 235 or 245 front
Could you send pics of how much yours stick out as it is? 3038841305
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      03-09-2018, 08:25 PM   #12
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Ahh, only a pair of 19s, thought you meant a set of 4 that were all the same size. Never mind then.

Pretty sure I know where you're getting these pairs from, and if it's what I'm thinking it is, I already tried to come up with a combo that would work.
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      03-09-2018, 09:28 PM   #13
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Quote:
Originally Posted by KogarsGary View Post
Could you send pics of how much yours stick out as it is? 3038841305
I'm away from my car right now but found this pic, kind of hard to tell but et33 with a 9.5" wheel is almost flush. Photo was taken before I lowered it.

I went with a 235 tire because I thought I may get rubbing but now I will swap it out with a 245\35 though I have heard a 255\35 will fit
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      03-10-2018, 07:08 PM   #14
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Quote:
Originally Posted by KogarsGary View Post
I was under the impression that with these sets of 19s with this offset would be too far out, how would i fix that with spacers? Unless I misunderstood your statement
19x9 ET38 is a VERY conservative offset and will push the wheels further inside the wheel well. some 5mm spacers front and rear would help push them out further.
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