BMW style 400M 4 front wheels ?

Loutch31 · 07-08-2024, 11:04 AM

Hi everyone, I just bought a set of style 400M wheels off of facebook marketplace. I was checking which tires I should run on them and noticed that they all have the same 18x8 size when everywhere online it says they should come as 18x8 front and 18x8.5 rear. I have a 328xi that I programmed with a delete to be purely RWD. Will this affect my car and have you heard of something similar ?

oVeRdOsE. · 07-08-2024, 12:17 PM

overall diameter of the tire matters, width not that much. BMW sells staggered or squared setup on xi.

diameter need to be the same front & rear, or in 0.4-ish%

https://tiresize.com/calculator/

Now you have 4x wheels at 8'', so squared. Ideally you'll have 4 identical tire, but you can go bigger in the rear no problem (under the 8'' rim limit), and keep same diameter.

wrevilo · 07-09-2024, 04:02 AM

A square setup using 235/40/18 tyres will work well. You may need to consider spacers to get the fitment you want.

I think these are a really attractive wheel and will look great on your car once you get them sorted.

Onizukachan · 07-10-2024, 11:25 AM

AWD f30 came with factory squared set up. No issue just run same size tires all around

07-08-2024, 11:04 AM	#1
Loutch31 Registered 0 Rep 3 Posts Drives: 2008 BMW 328xi Wagon 6sp Join Date: Apr 2024 Location: Montreal, Canada iTrader: (0)	BMW style 400M 4 front wheels ? Hi everyone, I just bought a set of style 400M wheels off of facebook marketplace. I was checking which tires I should run on them and noticed that they all have the same 18x8 size when everywhere online it says they should come as 18x8 front and 18x8.5 rear. I have a 328xi that I programmed with a delete to be purely RWD. Will this affect my car and have you heard of something similar ? Attached Images
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07-08-2024, 12:17 PM	#2
oVeRdOsE. Lieutenant Colonel 3420 Rep 1,953 Posts Drives: F25 E91 Audi Avnt E90 Cayenne Join Date: May 2018 Location: mtl iTrader: (0)	overall diameter of the tire matters, width not that much. BMW sells staggered or squared setup on xi. diameter need to be the same front & rear, or in 0.4-ish% https://tiresize.com/calculator/ Now you have 4x wheels at 8'', so squared. Ideally you'll have 4 identical tire, but you can go bigger in the rear no problem (under the 8'' rim limit), and keep same diameter.
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07-09-2024, 04:02 AM	#3
wrevilo Private First Class 76 Rep 151 Posts Drives: 2010 E92 335i N55 6MT Join Date: Feb 2023 Location: Wiltshire, UK iTrader: (0)	A square setup using 235/40/18 tyres will work well. You may need to consider spacers to get the fitment you want. I think these are a really attractive wheel and will look great on your car once you get them sorted.
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07-10-2024, 11:25 AM	#4
Onizukachan Great Teacher 1492 Rep 1,457 Posts Drives: 06 e91 325ix Join Date: Aug 2015 Location: El Paso iTrader: (0) Garage List 2006 E91 325ix [10.00] 2006 Mini r53 JCW [0.00] 2005 Mini r53 [0.00]	AWD f30 came with factory squared set up. No issue just run same size tires all around __________________ ‘06 e91 manual 325ix BarriqueRot over Terra (one of 1), Nav, Sport, L7 A few OEM+ mods: MTech front bumper, MSport wheel & handbrake, 4AD trim, full rear shades, more to come…
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