recommended spacer size for x4 m40i

peteygasp · 09-28-2016, 02:57 PM

I think was thinking either

12mm front 18mm rear
12mm front 20mm rear
15mm front 20mm rear
15mm front 18mm rear

What do you think will look best on my m40, i have the 20" w/ michelin pss if that helps

DBU · 09-28-2016, 10:44 PM

Very subjective. I have the same setup (20" Michelins) and will most likely go up a tire size or two when the original rubber has worn out. And, yes, we need spacers to accommodate wider tires on these rims. I think I would go with the same size of spacers all around, say, 18mm.

Would love to see some pictures of what you end up with.

peteygasp · 09-28-2016, 10:56 PM

Quote:

Originally Posted by DBU

Very subjective. I have the same setup (20" Michelins) and will most likely go up a tire size or two when the original rubber has worn out. And, yes, we need spacers to accommodate wider tires on these rims. I think I would go with the same size of spacers all around, say, 18mm.

Would love to see some pictures of what you end up with.

Thanks a lot for the input, i will probably go with a larger tire size as well so having the spacers already will be nice--will look into 18mm all around, sounds like not a bad idea. Anyone out there have pics?

bmwpc · 10-08-2016, 09:53 AM

I was wondering what aspect of the current 20" wheel and Michelin Super Sport is failing you to need more tire?

Quote:

Originally Posted by peteygasp

I think was thinking either

12mm front 18mm rear
12mm front 20mm rear
15mm front 20mm rear
15mm front 18mm rear

What do you think will look best on my m40, i have the 20" w/ michelin pss if that helps

peteygasp · 10-08-2016, 10:08 AM

Quote:

Originally Posted by bmwpc

I was wondering what aspect of the current 20" wheel and Michelin Super Sport is failing you to need more tire?

Quote:

Originally Posted by peteygasp

I think was thinking either

12mm front 18mm rear
12mm front 20mm rear
15mm front 20mm rear
15mm front 18mm rear

What do you think will look best on my m40, i have the 20" w/ michelin pss if that helps

I drove an x5 with 315's in the rear. These look like they could use a little more meat to me in my opinion. I like the "hefty" look I had on my x5, rather than the raised suv look.

ctdw · 11-29-2016, 09:08 AM

Just wondering what you went with and if you have pictures? I have a X4 M40i on order and will be swapping for a winter wheel set as soon as it arrives and want to put spacers on at that time.

DBU · 12-03-2016, 09:56 PM

For those of you thinking about spacers and up-sizing your tires, check out: https://www.rimsntires.com/specspro.jsp to calculate effect of oversized tires. Cheers-

FSociety · 12-09-2016, 10:27 AM

peteygasp ctdw we should try to meet up sometime and compare our cars

riskmaker76 · 12-09-2016, 10:51 AM

Take before and after pics... love to see the difference.

atrueb · 12-10-2016, 04:49 PM

I've got 12mm up front and 17mm at the back on each side of my X3. You can find some pics here: http://x3.xbimmers.com/forums/showth...1059161&page=2 You'll also find a picture of a stock x3 next to my x3 with spacers.... There is a world of difference:-)

I would not not really suggest the 20mm in combination with the 20x10 wheels, as the stance will be really wide and the rear wheels will stick out more than the front 8.5" wheels . I have 17mm with 9.5" wide wheels, and that looks just right. So with the 10" wide wheels, the 18mm spacers will be enough.

Maybe one thing to keep in mind: The wider the rear stance is compared to the front, the harder the steering will become.

09-28-2016, 02:57 PM	#1
peteygasp Private 36 Rep 69 Posts Drives: Order: 2017 BMW X4 M40i Join Date: Nov 2014 Location: North Shore Nassau, Long Island, NY iTrader: (0)	recommended spacer size for x4 m40i I think was thinking either 12mm front 18mm rear 12mm front 20mm rear 15mm front 20mm rear 15mm front 18mm rear What do you think will look best on my m40, i have the 20" w/ michelin pss if that helps __________________ 2012 C350 Black/Black 2012 BMW X5 35i Sport Activity AW/Black 2015 435i xDrive Sport MG/CR On Order: 2017 X4 M40i CB/SB
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09-28-2016, 10:44 PM	#2
DBU Captain 233 Rep 395 Posts Drives: 2022 X4MC - Marina Bay Blue Join Date: Sep 2012 Location: Orange County, California iTrader: (0)	Very subjective. I have the same setup (20" Michelins) and will most likely go up a tire size or two when the original rubber has worn out. And, yes, we need spacers to accommodate wider tires on these rims. I think I would go with the same size of spacers all around, say, 18mm. Would love to see some pictures of what you end up with. __________________ '22 ///X4M Competition - fully loaded Marina Bay Blue. Lowered on MSS springs. 20" x 10 ET20 Vertini RFS1.2 wheels wrapped in Firestone Indy 500 Firehawk 275/40 tires (square setup). Hers: '15 X4 2.8i - Glacier Silver - loaded M-Sport
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11-29-2016, 09:08 AM	#6
ctdw Second Lieutenant 124 Rep 208 Posts Drives: M5C (F90) Join Date: Mar 2006 Location: NC iTrader: (0)	Just wondering what you went with and if you have pictures? I have a X4 M40i on order and will be swapping for a winter wheel set as soon as it arrives and want to put spacers on at that time.
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12-03-2016, 09:56 PM	#7
DBU Captain 233 Rep 395 Posts Drives: 2022 X4MC - Marina Bay Blue Join Date: Sep 2012 Location: Orange County, California iTrader: (0)	Tire Size Calculator For those of you thinking about spacers and up-sizing your tires, check out: https://www.rimsntires.com/specspro.jsp to calculate effect of oversized tires. Cheers- __________________ '22 ///X4M Competition - fully loaded Marina Bay Blue. Lowered on MSS springs. 20" x 10 ET20 Vertini RFS1.2 wheels wrapped in Firestone Indy 500 Firehawk 275/40 tires (square setup). Hers: '15 X4 2.8i - Glacier Silver - loaded M-Sport
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12-09-2016, 10:27 AM	#8
FSociety IG @bmwF9xG80 3813 Rep 7,593 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [0.00] 2020 BMW X4MC [0.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [0.00]	peteygasp ctdw we should try to meet up sometime and compare our cars __________________ 60-130mph 6.5s X4M #HCP 60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce IG: @bmwF9XG80
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12-09-2016, 10:51 AM	#9
riskmaker76 Lieutenant 126 Rep 484 Posts Drives: 440 xi MPPSK JB4 Join Date: Aug 2016 Location: Socialist People's State of NY - Long Island, NY iTrader: (0)	Take before and after pics... love to see the difference.
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12-10-2016, 04:49 PM	#10
atrueb Second Lieutenant 60 Rep 236 Posts Drives: BMW X3 G01 Join Date: Feb 2014 Location: Zurich iTrader: (0)	I've got 12mm up front and 17mm at the back on each side of my X3. You can find some pics here: http://x3.xbimmers.com/forums/showth...1059161&page=2 You'll also find a picture of a stock x3 next to my x3 with spacers.... There is a world of difference:-) I would not not really suggest the 20mm in combination with the 20x10 wheels, as the stance will be really wide and the rear wheels will stick out more than the front 8.5" wheels . I have 17mm with 9.5" wide wheels, and that looks just right. So with the 10" wide wheels, the 18mm spacers will be enough. Maybe one thing to keep in mind: The wider the rear stance is compared to the front, the harder the steering will become. __________________ BMW X3 G01 Alpine White
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