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X3 F25 (2011 - current)
The latest X3 brings added style and new features to the BMW's mid-sized SUV. Talk about the BMW F25 X3 with other X3 owners now!

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  #1  
Old 04-12-2016, 09:43 AM
BE X BE X is online now
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Alternate OEM wheels on F25/F26

Has anyone tried using style 437m wheels on their X3/X4?

Did a search here and thru Google, no results. Thought I'd ask before I chase a decent set of 437s that are local.
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  #2  
Old 04-12-2016, 01:21 PM
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LMC LMC is offline
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Interesting question and I'll be curious if somebody chimes in with actual experience.

My first reaction was no way, but looking at the numbers (width and offset) I think they could work.

Let me take you on a magic trip to turn X3 19s into M3 19s:
(1) In front, the 437Ms are 9 inches wide instead of the X3 8.5: Edge of rim moves out 6mm and also in 6mm. Also, due to 29mm offset of the 437Ms instead of 38mm X3 offset, the whole wheel moves out 9mm. Therefore, outer edge of wheel is now out 15mm and inner edge is further out (not in) 3mm. That 15mm is slightly unsettling but does not sound like a show stopper to me...
(2) In the rear, the 437Ms are 10 inches wide, which is 1.5 inches wider than non-staggered X3 fitments. Outer edge comes out 19mm, and inner edge goes in 19mm. Hmmm....sounds bad. Offset is 40 instead of 38, which moves the outer edge back in 2mm (no sweat) but also moves inner edge further in by 2mm, meaning inner edge is total 21mm further in. Could be a rubbing problem. BUT WAIT! -- in Europe the F25 is available with wider rears 9.5 wide with 48mm offset and 275/40R-19 tires -- clearly there is some slack available at the rear.

My conclusion: Assuming you do not get too crazy with tire width, I think it will work. Stick to OE tire widths: 245/45R-19 front and 275/40R-19 rear. Or use the 245s front and rear. All theoretical, of course -- nothing beats the testimony of somebody who has actually done it.
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Last edited by LMC; 04-12-2016 at 01:24 PM.
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  #3  
Old 04-12-2016, 03:01 PM
BE X BE X is online now
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Exactly how I got to where I was willing to ask if it had been done before!
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Old 04-12-2016, 03:10 PM
BE X BE X is online now
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If I do go this route, I am planning to use OE tire widths
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Old 04-12-2016, 03:26 PM
BE X BE X is online now
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Any way to check load capacity rates? Since the 437m is an M3 wheel, I'd guess it is strong, but X3 weight and load strong?...
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  #6  
Old 04-12-2016, 08:32 PM
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Originally Posted by BE X View Post
Any way to check load capacity rates? Since the 437m is an M3 wheel, I'd guess it is strong, but X3 weight and load strong?...
I'm not expert enough to get called into court when a wheel comes apart at 130 mph but ya gotta figure that an M3/M4 wheel is good for extreme conditions -- albeit at a lower GVWR. I wouldn't worry if it were me.

By the way, I am in the early stages of ordering an M3 -- gonna spec those pretty 437M wheels. Hang on a sec and I will swap wheels out and check...
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'16 M3 on the way...
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Old 04-12-2016, 09:08 PM
BE X BE X is online now
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Heck - order yours with the silver 437M wheels and pick it up in South Carolina - drive the Dragon and then sell me those wheels when you pass thru Knoxville on the way back to Oregon!!

Honestly, not really concerned but trying to figure out what wheels I want to run on an X3 that I'll order later in the year. I'm fine with 19" and simply want something a little wider that the 8.5/9.5 stock options (don't care for the 310 wheels).
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Old 04-13-2016, 05:26 AM
dreamingx3 dreamingx3 is offline
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Don't forget to look at clearance on the brake calipers. The available interior diameter needs to be checked, as well as any taper on this space.
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Old 04-13-2016, 07:18 AM
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Good Point! Thanks!
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  #10  
Old 04-13-2016, 11:04 AM
poker838 poker838 is offline
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never mind

Last edited by poker838; 04-13-2016 at 11:07 AM.
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  #11  
Old 04-16-2016, 08:05 PM
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Originally Posted by BE X View Post
Heck - order yours with the silver 437M wheels and pick it up in South Carolina - drive the Dragon and then sell me those wheels when you pass thru Knoxville on the way back to Oregon!!
Ha! The plan is for performance center delivery in SC, then a short drive to Knoxville to visit sister. But no, you cannot have my wheels! (Note to self; keep sharp eye out while in Knoxville to make sure BE X does not abscond with wheels on M3.) But the plan is for all this to go down about a year from now anyway...

I thought the Dragon had gone to crap in recent years. On a previous visit to Knoxville from the DC area where I used to live, I drove the Dragon (1995, I think) and enjoyed it; it wasn't crowded that day. I thought it was too crowded these days -- sort of like a school zone or rush hour with lots of curves.
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BMW CCA #115780
'14 X3 35i M sport
'16 M3 on the way...

Last edited by LMC; 04-16-2016 at 08:09 PM.
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  #12  
Old 04-16-2016, 10:16 PM
BE X BE X is online now
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Definitely a different drive than it use to be - nowadays, we don't talk about the alternate drives round here.

I'll have wheels figured out by the time you come thru town so you will simply need to keep it between the lines!
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