How Much Rear Room?

grampsg30 · 06-11-2023, 07:46 PM

Looking for some clarity on how much room we got in the rear. I think the fronts will be fine...just wondering if im pushing it with the rear.

Car will be lowered on eibach springs, no fender rolling. Actual spacer size is 12/18mm but they only had inches to select.

The wheels are 8.5/9.5 wide, so i dont HAVE to go 285

tjbuggy2b · 07-29-2023, 06:14 AM

Researching wheel/tire sizes, myself. 285's seem to be an easy fit, depending on offset. 295's seem doable, too. I've even seen some people say that 305's will fit but not 100% sure on that one.

jag81 · 07-31-2023, 06:36 AM

I have 255 fronts and 295 rears, on 9 and 10j wheels respectively.

I'm not lowered but am on adaptive suspension. no fitment issues what so ever.

PetieD 7 · 07-31-2023, 08:22 PM

My front is 255/35/20 (20x9) and the rear is 295/30/20 (20x10.5). No rubbing problem whatsoever and my vehicle is equipped with xDrive.

tjbuggy2b · 08-01-2023, 11:08 PM

Quote:

Originally Posted by PetieD 7

My front is 255/35/20 (20x9) and the rear is 295/30/20 (20x10.5). No rubbing problem whatsoever and my vehicle is equipped with xDrive.

What offsets are you running?

PetieD 7 · 08-02-2023, 07:01 AM

Quote:

Originally Posted by tjbuggy2b

What offsets are you running?

The offsets that I am using are considered conservative...nothing too crazy.

Front: ET 32
Rear: ET 45

tjbuggy2b · 08-02-2023, 10:54 AM

Cool! I was thinking about (max) 30mm drop with MSS adjustable springs, and Continental ExtremeContact Sport 2's on...

Front: 20x9 et30 w/ 255/35r20
Rear: 20x10.5 et 40 w/ 295/30r20

I'd love to pick up some KW coilovers but I can't justify the cost. I've had them before, and really like them but that was on an e90 when they still made the V1's.

06-11-2023, 07:46 PM	#1
grampsg30 New Member 3 Rep 9 Posts Drives: bmw 540i Join Date: Jun 2023 Location: California iTrader: (0)	How Much Rear Room? Looking for some clarity on how much room we got in the rear. I think the fronts will be fine...just wondering if im pushing it with the rear. Car will be lowered on eibach springs, no fender rolling. Actual spacer size is 12/18mm but they only had inches to select. The wheels are 8.5/9.5 wide, so i dont HAVE to go 285 Attached Images
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07-29-2023, 06:14 AM	#2
tjbuggy2b Lieutenant 183 Rep 416 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	Researching wheel/tire sizes, myself. 285's seem to be an easy fit, depending on offset. 295's seem doable, too. I've even seen some people say that 305's will fit but not 100% sure on that one. Last edited by tjbuggy2b; 08-16-2023 at 03:16 PM..
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07-31-2023, 06:36 AM	#3
jag81 Private First Class 90 Rep 179 Posts Drives: G30 540iX, E87 130i Join Date: Mar 2022 Location: UK iTrader: (0)	I have 255 fronts and 295 rears, on 9 and 10j wheels respectively. I'm not lowered but am on adaptive suspension. no fitment issues what so ever.
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07-31-2023, 08:22 PM	#4
PetieD 7 Second Lieutenant 170 Rep 253 Posts Drives: 540i xDrive M Sport Join Date: Jul 2013 Location: North America iTrader: (0)	My front is 255/35/20 (20x9) and the rear is 295/30/20 (20x10.5). No rubbing problem whatsoever and my vehicle is equipped with xDrive.
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08-02-2023, 10:54 AM	#7
tjbuggy2b Lieutenant 183 Rep 416 Posts Drives: 2018 540i xDrive M Sport Join Date: Nov 2010 Location: Columbus, OH iTrader: (0)	Cool! I was thinking about (max) 30mm drop with MSS adjustable springs, and Continental ExtremeContact Sport 2's on... Front: 20x9 et30 w/ 255/35r20 Rear: 20x10.5 et 40 w/ 295/30r20 I'd love to pick up some KW coilovers but I can't justify the cost. I've had them before, and really like them but that was on an e90 when they still made the V1's.
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