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M2 Technical Topics > Wheels / Tires -- Sponsored by The Tire Rack > Trying to run 11 inch rims at the rear, am i crazy?

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      10-16-2020, 05:55 PM   #1
eddymmm
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Trying to run 11 inch rims at the rear, am i crazy?

Okay guys, so I have wanted these rims for a while but unfortunately they are not available in 10.5 width with proper offsets for our cars. So I have done some research and used the website below to check the following setup. Ive triple checked to make sure it all seems reasonable and I am on completely stock suspension. What do you guys think?

https://www.willtheyfit.com used to check fitment

Wheel specs

Apex SM10
19 x 9.5 +22 265/35/19 PS4S F
19 x 11 +44 (with 5 mm spacer, so effectively +39) 285/35/19 PS4S R

5x120
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      10-16-2020, 05:59 PM   #2
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Also before any one says im completely idiotic for even thinking of this, heres why I think itll work.

https://wheelfront.com/cars/bmw-m2-f87-blue-apex-sm-10/

Another guy did it but hes running stock tore sizes which imo is too much stretch
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      10-16-2020, 06:03 PM   #3
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It’ll work but be very tight to the fender under compression.

If it’s too close, just remove the spacer or run a 3mm spacer to set it right in between the fender and suspension.
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      10-16-2020, 06:47 PM   #4
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Call Apex and speak to Ryan. They are supremely knowledgeable about all things regarding tires/wheels.
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      10-16-2020, 07:43 PM   #5
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At ET39 you are running about 11-12mm wider than stock. Bunch of people run 10-15mm spacer in the rear so you are not entering uncharted territory. This shouldn't be too difficult to fit with the right tire, camber, and ride height.

But I don't have personal experience with this so contacting Apex would be the safest.

Edit: I just noticed your tire size. No, that's not the right tire. 295/30/19 would be better.
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      10-16-2020, 07:47 PM   #6
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Quote:
Originally Posted by No Boost View Post
Call Apex and speak to Ryan. They are supremely knowledgeable about all things regarding tires/wheels.
Quote:
Originally Posted by No Boost View Post
Call Apex and speak to Ryan. They are supremely knowledgeable about all things regarding tires/wheels.

I have and they tell me to look at their recommended fitment guide which doesn't include the setup i have listed. Havent personally spoken to Ryan though so maybe I'll try that
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      10-16-2020, 07:48 PM   #7
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Quote:
Originally Posted by mr_lab_rat View Post
At ET39 you are running about 11-12mm wider than stock. Bunch of people run 10-15mm spacer in the rear so you are not entering uncharted territory. This shouldn't be too difficult to fit with the right tire, camber, and ride height.

But I don't have personal experience with this so contacting Apex would be the safest.

Edit: I just noticed your tire size. No, that's not the right tire. 295/30/19 would be better.
Quote:
Originally Posted by No Boost View Post
Call Apex and speak to Ryan. They are supremely knowledgeable about all things regarding tires/wheels.
May I ask, what is wrong with my tire choice? Too tall?
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      10-16-2020, 08:29 PM   #8
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Quote:
Originally Posted by eddymmm View Post
May I ask, what is wrong with my tire choice? Too tall?
Yes, it's taller than stock and you are already pushing the limits with the wheel size. It doesn't mean it won't fit but dropping the sidewall ratio should get you close to OEM diameter.
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      10-23-2020, 12:44 PM   #9
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Quote:
Originally Posted by mr_lab_rat View Post
Yes, it's taller than stock and you are already pushing the limits with the wheel size. It doesn't mean it won't fit but dropping the sidewall ratio should get you close to OEM diameter.
This is correct. you'll need to go 30s in the rear and 35s in the front with that width in the rear.
it'll look a little off with different height tires but this also depends on what type of tires you get
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      10-23-2020, 01:08 PM   #10
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The 19 x 11 +44 will work fine with the 295/30 (it's close, but you can camber the difference).

If you MUST use that spacer, I recommend that you go with a 285/30 on the rear, which will crown a bit, but work much easier.

Your front tire size is wrong as well, should be a 265/30 at the widest, but at +22 you're probably going to have issues without dropping it pretty low or cambering it, so consider a 255/35 with a more rounded shoulder.

Just remember this:

Perfection is:

19 x 9.5 +28 w/ 265/30/19
19 x 10.5 +43 w/ 285/30/19

You're not far off those specs.
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      10-23-2020, 01:21 PM   #11
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Quote:
Originally Posted by VisualEcho View Post
The 19 x 11 +44 will work fine with the 295/30 (it's close, but you can camber the difference).

If you MUST use that spacer, I recommend that you go with a 285/30 on the rear, which will crown a bit, but work much easier.

Your front tire size is wrong as well, should be a 265/30 at the widest, but at +22 you're probably going to have issues without dropping it pretty low or cambering it, so consider a 255/35 with a more rounded shoulder.

Just remember this:

Perfection is:

19 x 9.5 +28 w/ 265/30/19
19 x 10.5 +43 w/ 285/30/19

You're not far off those specs.
I selected that spacer because effectively itll give me a +13mm over stock which is exactly what i like(currently running +12mm all around and i love it)

The front without a spacer will give me +13mm as well so that's exactly what im looking for
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      10-23-2020, 01:25 PM   #12
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Quote:
Originally Posted by eddymmm View Post
I selected that spacer because effectively itll give me a +13mm over stock which is exactly what i like(currently running +12mm all around and i love it)

The front without a spacer will give me +13mm as well so that's exactly what im looking for
That's aggressive with such big tires...
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      10-23-2020, 09:33 PM   #13
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I am running 285/30 19 on a 10J 34ET rim and the tyre is slightly (1mm) poking out from the fender.

Your 11J 44ET setup will poke out 3mm more than mine and with the 5mm spacer, 8mm pokier.

Add to the fact that you want to go 35 profile which is about 1.5cm taller in radius, 3cm taller in overall height...

I just don't see how it will not rub under heavy suspension compression.

To make a 11J work on a 285/35 setup you need to throw out the spacer and go with a 48+ ET

Perhaps you can camber out the rub but you will lose straight line traction as a result and couple with excessive inner tyre wear if the car is mostly street driven
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      10-29-2020, 09:46 AM   #14
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A lot of people are running 11 rears. Just need some stretch and maybe a touch of negative camber depending the offset .
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      10-29-2020, 03:38 PM   #15
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I helped a customer a while back with a unique 19"/18" combination. He was running 18x11 ET44 EC-7s in the rear with 19x9.5 ET28 in the front to clear the M2 Comp. brakes. Rear tires were 305/35-18 Nitto NT01s. It fit, but I believe he was running a bit of additional negative camber in the rear to make it work.

VisualEcho makes a very good point about the front fitment as well... 19x9.5 ET22 is a lower than ideal offset and will require camber and/or tire stretching to fit in most cases.

The 19x11 ET44 wheel size can definitely work although running slightly stretched 285 or 295 section tires will definitely make it easier. I would not recommend running a spacer as it's just going to reduce fender clearance. I'll see if I can dig up photos of the 18x11 ET44s on an M2 although if I remember correctly the images weren't the best as far as figuring out rear fitment goes.

Edit: Images added





Specs:
Front: 19x9.5 ET28 EC-7s with 255/30-19 Michelin PS4S (stretched)
Rear: 18x11 ET44 EC-7s with 305/30-19 Nitto NT01s

Not a fitment I would recommend for most people but it worked for this individual. Hope this helps!

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      10-31-2020, 04:17 AM   #16
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Quote:
Originally Posted by VisualEcho View Post
The 19 x 11 +44 will work fine with the 295/30 (it's close, but you can camber the difference).

If you MUST use that spacer, I recommend that you go with a 285/30 on the rear, which will crown a bit, but work much easier.

Your front tire size is wrong as well, should be a 265/30 at the widest, but at +22 you're probably going to have issues without dropping it pretty low or cambering it, so consider a 255/35 with a more rounded shoulder.

Just remember this:

Perfection is:

19 x 9.5 +28 w/ 265/30/19
19 x 10.5 +43 w/ 285/30/19

You're not far off those specs.
Hi mate! would you say those specs are also perfect for 18"??

Trying to find the perfect fitment for track wheels.
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      10-31-2020, 07:28 AM   #17
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Quote:
Originally Posted by Sallysalkeld View Post
Hi mate! would you say those specs are also perfect for 18"??

Trying to find the perfect fitment for track wheels.
18" are a bit different, just as 20" is, so no, I'm not exact on the specs for those sizes. Search for a thread here on Bimmerpost called "max rubber on the m2", I think it'll have the answers you need.
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      10-31-2020, 12:25 PM   #18
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Quote:
Originally Posted by Sallysalkeld View Post
Hi mate! would you say those specs are also perfect for 18"??

Trying to find the perfect fitment for track wheels.
The rim diameter shouldn't really change things much.

19 x 9.5 +28 w/ 265/30/19
19 x 10.5 +43 w/ 285/30/19

is very close to (5mm larger overall diameter)

18 x 9.5 +28 w/ 265/35/18
18 x 10.5 +43 w/ 285/35/18
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      11-12-2020, 07:55 PM   #19
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You really shouldn't need the spacer in the rear. Front 22 is also pretty aggressive for a 265/35 and may rub a little.
I ran a 305/30/19 on a 19x11 et40. Was too much poke for me. See below...
Attached Images
  
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      11-15-2020, 11:29 AM   #20
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Quote:
Originally Posted by F80_Katz View Post
You really shouldn't need the spacer in the rear. Front 22 is also pretty aggressive for a 265/35 and may rub a little.
I ran a 305/30/19 on a 19x11 et40. Was too much poke for me. See below...
Would like to know more about this, thinking of running 19x11 et37 with 285/35/19 ... aftermarket coils? Camber? Any advice would be appreciated.
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      11-15-2020, 06:48 PM   #21
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Quote:
Originally Posted by bngcruiser View Post
Quote:
Originally Posted by F80_Katz View Post
You really shouldn't need the spacer in the rear. Front 22 is also pretty aggressive for a 265/35 and may rub a little.
I ran a 305/30/19 on a 19x11 et40. Was too much poke for me. See below...
Would like to know more about this, thinking of running 19x11 et37 with 285/35/19 ... aftermarket coils? Camber? Any advice would be appreciated.
Perfect fit for f80/f82 but for the m2, even with the 285 you'd have to run about -4 degrees of camber to fit properly. It's doable if you like that look but pretty aggressive.
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      01-17-2022, 05:45 PM   #22
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Quote:
Originally Posted by F80_Katz View Post
You really shouldn't need the spacer in the rear. Front 22 is also pretty aggressive for a 265/35 and may rub a little.
I ran a 305/30/19 on a 19x11 et40. Was too much poke for me. See below...
Hello sir, could you provide more photos of this wheel and tire setup. Looking to do similar setup for my m2c.

Thank you !!
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