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      01-28-2017, 01:44 PM   #111
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Quote:
Originally Posted by bill_f31 View Post
My OEM 437M rims are finally on...
The style 437 wheels looks amazing on your F31!
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      01-28-2017, 06:32 PM   #112
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Quote:
Originally Posted by oguz kuruca View Post
UPDATE: I live in east coast, weather dropped down to 15-20 F lately. my front tire is leaking air, (it happened last year too). front tires are stretched so they leak every winter. it gets stupid annoying after few visits to the tire shop. It's fine from April to November. So I purchased some oem style 192s and installed them for the winter (required spacers in the front). BTW I don't do much driving in the winter but with the winter tires and all wheel drive, car drives great even in snow!
Was this with your 225/255 tyres?

Were they the original runflats from the 403s? What brand were they?

Any close ups of the 225 on the 9J rim to see the stretch?
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      01-28-2017, 07:01 PM   #113
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Quote:
Originally Posted by Kabrich View Post
Interesting info.

Making sure there are no assumptions, exactly what is the first and second %?

Also, fwiw, there are forum members claiming they are running 275/35R19 and claim no rubbing, while others claim the ride is just too rough.
The first number is the front, the second number is the rear.
ie: 1% / 1.5% means the front wheel is 1% larger than stock and the rear wheels is 1.5% larger than stock. Ideally, both of these percentages would be the same 1% / 1% or 1.5% / 1.5% to guarantee the front and back are rotating at the same speed, but in reality, the CPU has to compensate for this as the front and rear tires wear differently over time.

As for 275/35R19, you are correct. Some members use this setup just fine with no rubbing, while others either find slight rubbing or don't like the ride and have been forced down to 265/35R19.
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      01-28-2017, 07:12 PM   #114
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Quote:
Originally Posted by Gr-Racing View Post
Running 235/35/19 and 265/30/19 and wishing more tire.
More poke?
More width?
More sidewall height?
More overall height?
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      01-29-2017, 01:33 AM   #115
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Quote:
Originally Posted by CPT Smuggs View Post
The first number is the front, the second number is the rear.
ie: 1% / 1.5% means the front wheel is 1% larger than stock and the rear wheels is 1.5% larger than stock. Ideally, both of these percentages would be the same 1% / 1% or 1.5% / 1.5% to guarantee the front and back are rotating at the same speed, but in reality, the CPU has to compensate for this as the front and rear tires wear differently over time.

As for 275/35R19, you are correct. Some members use this setup just fine with no rubbing, while others either find slight rubbing or don't like the ride and have been forced down to 265/35R19.
Thanks. I kinda assumed it was front and back, but because of your reference to speedo error of 1% and assuming speed is only calculated on 1 axle, was trying to make sure it wasn't something related to that.
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      01-29-2017, 04:39 PM   #116
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Originally Posted by sicmadek View Post
Where did you buy the wheels from?
I bought mine from a guy who took them off his M4.
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      01-30-2017, 07:57 PM   #117
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Would a square set up with 255/35R19 on 19x9 437M work?

Last edited by mdai245; 01-30-2017 at 08:11 PM.
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      01-30-2017, 10:14 PM   #118
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Quote:
Originally Posted by mdai245 View Post
Would a square set up with 255/35R19 on 19x9 437M work?
I have seen others run that same setup, so yes it will work, depends on the offset. Maybe ET35 all around?
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      01-31-2017, 01:22 AM   #119
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Quote:
Originally Posted by CPT Smuggs View Post
I have seen others run that same setup, so yes it will work, depends on the offset. Maybe ET35 all around?
I am kind of new to wheel fitment.

Stock 437M 19x9 wheels are ET29, so would ET35 mean I would need 6mm spacers all around?
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      01-31-2017, 05:28 AM   #120
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Quote:
Originally Posted by .BMW. View Post
The style 437 wheels looks amazing on your F31!
Thank you!
I really love my original 437M wheels (looks,stance,performance).
So,some better pics with my DSLR.
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      01-31-2017, 06:10 AM   #121
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Probably the best looking F3X in Greece!
Congrats Bill for your wonderful OEM set up of these pretty nice looking original 437
Undoubtful the first non M (but OEM M sport)car in our country!!
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      01-31-2017, 07:42 PM   #122
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Quote:
Originally Posted by mdai245 View Post
I am kind of new to wheel fitment.

Stock 437M 19x9 wheels are ET29, so would ET35 mean I would need 6mm spacers all around?
There is a calculator at the top of this link that will show what the differences will be. You also need to take wheel width into account when playing with wheel offset. The offset is relative to the center of the wheel, so the same ET35 offset will provide different results on an 8" wheel vs a 10" wheel.

See diagram

You will not want to use any spacers with a 437m wheel on a 440 as the wheel already extends past the fender both front and back.

You may want to use a 5mm spacer on the front if you choose a replica wheel.
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      04-15-2017, 12:13 PM   #123
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UPDATE 4-15-17:

One of my front tire is still leaking air. Shops cannot find what it is, they have tested everything, even the tpms sensor. They cannot figure it out. I think it's leaking because it is (stretched). BUT other one holds just fine, it's only one that is giving me issues. I want to purchase two new front tires. So, my question is can I run 235/35/19 with rears being 255/35/19? My car is an XI will there be an issue? I know with XIs its trickier.

Question is Can I run 235/35/19 fronts with 255/35/19 rears?

My current setup is 225/40/19 and 255/35/19

I want 235/35/19 and 255/35/19 if it's okay
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      05-17-2017, 11:22 AM   #124
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Oguz - I'm doing a tremendous amount of research before purchasing wheels and this has been one of the best forum posts for it.
One of my OCD over-analysis traits catches the difference between the 437m OEM vs Replica look. The OEM is darker on the outside spokes and edges, while the replicas are lighter. I like the OEM darker look, but that cost difference is maybe a couple $$$thousand$$.
To answer your question as far as setup, I would try to go what BMW recommends for your car. But if you want to change it up, You should also consider the size of the wheel width and offset to determine your tire setup.
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      05-17-2017, 04:13 PM   #125
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I can't speak for the XI piece of it but i went with M2 wheel specs. See my thread, specifically post 75. i have been very happy with the 245/35 & 265/35 setup.

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      05-24-2017, 09:42 PM   #126
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Quote:
Originally Posted by bill_f31 View Post
My OEM 437M rims are finally on...
Also ditched the Runflats and although the diametre increase from 18'' (400M) to 19'' (437M) wheels, the ride is better.
225/40/19 - 255/35/19 tyres, M sport suspension lowered with ACS springs, no rubbing so far.

Just beautiful
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      06-04-2017, 06:23 PM   #127
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for all you running these tires on your 437m wheels:
(front) 225/40R19; (rear) 255/35R19

HOW HAVE THEY DONE OVER AN EXTENDED TIME?

(I still have my 403M tires that are new and I want to keep them for my 437M wheels when those wider tires need replacing on my M2)

thanks!
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      06-06-2017, 05:02 PM   #128
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Quote:
Originally Posted by oguz kuruca View Post
UPDATE 4-15-17:

One of my front tire is still leaking air. Shops cannot find what it is, they have tested everything, even the tpms sensor. They cannot figure it out. I think it's leaking because it is (stretched). BUT other one holds just fine, it's only one that is giving me issues. I want to purchase two new front tires. So, my question is can I run 235/35/19 with rears being 255/35/19? My car is an XI will there be an issue? I know with XIs its trickier.

Question is Can I run 235/35/19 fronts with 255/35/19 rears?

My current setup is 225/40/19 and 255/35/19

I want 235/35/19 and 255/35/19 if it's okay
Did they put the pumped up tire/rim combo into a tank of water and see where the bubbles were coming out from? I had this happen once and it turned out to be a very tiny pin hole in the actual rim, near where one of the spokes met the outer rim of the wheel. Mine would only leak at higher pressures (like 45+ pounds) or when it was cold out as the metal would contract a bit and open up the pin hole.
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      06-06-2017, 08:59 PM   #129
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Quote:
Originally Posted by clemsonkev View Post
for all you running these tires on your 437m wheels:
(front) 225/40R19; (rear) 255/35R19

HOW HAVE THEY DONE OVER AN EXTENDED TIME?

(I still have my 403M tires that are new and I want to keep them for my 437M wheels when those wider tires need replacing on my M2)

thanks!
I personally dont think those specs are a good idea for that rim & you will have a hard time finding a place to put those tires on those rims.. unless you don't care about a guarantee i guess. Who knows, maybe the installers are different up your way.

Is anyone actually running those specs other than oguz?
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      06-10-2017, 11:38 PM   #130
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finally got my pair of OEM 437M on with continental ECS tires on the 340xi. looks and feels great!

maybe a drop in the future but enjoying the travel and compliance and nibble handling for now.

stockers were:
225/40
255/35

with the 437Ms swapped tires to:
235/40
265/35



Last edited by monkiboy; 06-14-2017 at 12:08 AM.
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      06-11-2017, 12:45 PM   #131
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Quote:
Originally Posted by monkiboy View Post
finally got my pair of OEM 437M on with continental ECS tires on the 340xi. looks and feels great!

maybe a drop in the future but enjoying the travel and compliance and nibble handling for now.

I've a strong feeling that you'll be dropping this bad boy very soon
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      06-11-2017, 04:58 PM   #132
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Originally Posted by FeelinBlessed View Post
I've a strong feeling that you'll be dropping this bad boy very soon
mayyyyyyybe

need to see what clearance is like with front lip. that and diffuser arriving next week and we will go from there!
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