235/45/18

11-12-2019, 10:02 AM

Exactly.

Soravia · 11-12-2019, 10:26 AM

Quote:

Originally Posted by weehe126

I'm not concerned with strut clearance, just fender liner. I just shoved my hand behind my 235/40/18 wheels at full lock and am pretty sure I don't have an extra 1/2" of clearance.

What's your suspension?

weehe126 · 11-12-2019, 12:05 PM

Quote:

Originally Posted by Soravia

What's your suspension?

Sport rwd E90 lci. We can keep going back and forth but I'm 99% this tire will not fit anyone else. If you post a picture showing 1mm of clearance at full lock between tire and fender liner then it might make sense.

Soravia · 11-12-2019, 01:11 PM

I think I will just hold it out, and leave it for others to find out for a while.? 😂

weehe126 · 11-12-2019, 05:21 PM

Guess I'll have to bust out the playdough to see how much room I have.

streetpro · 11-13-2019, 01:39 AM

e92 rwd sport 235/40/18 on 8x18 et40 and there is no "normal" way to fit any taller tyre... fender liner would get rubbed...

Soravia · 11-13-2019, 12:44 PM

Quote:

Originally Posted by streetpro

e92 rwd sport 235/40/18 on 8x18 et40 and there is no "normal" way to fit any taller tyre... fender liner would get rubbed...

If sitting low, yes. There would be rub to the front upper side liner.
If sitting normal, no. It will clear.
Depending on actual tire rolling size as well. You have to see how many revolution per mile vs the one I have which is Bridgestone Potenza S-04. Tirerack list those details. Use the link banner above to get some money to forum. Should drop of the tires will also matter. Flatter shoulder sticks out more.

I can pass a thin sheet of paper. This small folded flyer still drops through. Held only by bending around the tire. It would rub slightly behind that paper location if you had lock and go over bumps. Nothing that would destroy the liner, unless you're locked on track at speed.

For my use. This setup works great for family wagon. I might have more clearance once I put on Bilstein B6 struts that may raise the car more.

weehe126 · 11-13-2019, 01:37 PM

1mm it is, thanks a lot for the pics.

Soravia · 11-13-2019, 03:49 PM

Probably more if you put heat gun to fender liner rub spot. Heat a larger circle and push at the rub area that is not heated itself

11-13-2019, 04:53 PM

Quote:

Originally Posted by weehe126

1mm it is

*on an xi*

Count on likely having less room on a RWD platform...as the bloke above mentioned:

Quote:

e92 rwd sport 235/40/18 on 8x18 et40 and there is no "normal" way to fit any taller tyre... fender liner would get rubbed...

With 245/40/18 up front (E90 w/ sport springs), there is definite rubbing @ full lock on my car which creates a visible scuff on the liner; even worse when going in reverse. Yes, a heat gun and some massaging *might* help that along, but adding a taller tire would obviously not help the situation any way you slice it.

weehe126 · 11-13-2019, 10:23 PM

I have fit 245/40/18 on my front and it rubbed for me. Im fully aware how tight it is. However, 225/45/18 fits just fine. It's the trade-off between height and width.

Soravia · 11-14-2019, 12:06 AM

I might be inclined to pull out the heat gun and see how much space there is to gain.
I have to pull off the summer anyway to go back to winters.
And still need to put in the LEDs. They won't go in with these wheels even at full lock.

11-14-2019, 07:40 AM

Quote:

Originally Posted by weehe126

I have fit 245/40/18 on my front and it rubbed for me. Im fully aware how tight it is. However, 225/45/18 fits just fine. It's the trade-off between height and width.

Agreed...so if that's the case, measure the clearance differences you have when running 245/40/18 and compare it to that of the clearances with 225/45/18 and you'll have your answer with respect to the tire size mentioned in the OP.

Different brand/model tires will obviously provide different results as well though...I've seen some 235 tires that end up being wider than most 255s, etc.

Soravia · 11-14-2019, 08:13 AM

Tire Rack make their own measurements on the tires and list in the spec page. You can scroll down the list and see the differences. That's how I picked out the Potenza S-04 size vs the OE 225/45/17 that invites lots of curb damage.

Soravia · 03-13-2020, 11:38 PM

No issues with rub when the car got Bilstein B6 HD dampers and new strut mounts along with new control arm bushings.
Car has a nice gap even with these bigger wheels. They look like they belong on the car. OE set-up looks ridiculous.

11-12-2019, 10:02 AM	#45
FCobra94 Guest 0 Rep n/a Posts Drives:	Exactly.
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11-12-2019, 01:11 PM	#48
Soravia Captain 127 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	I think I will just hold it out, and leave it for others to find out for a while.? 😂
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11-12-2019, 05:21 PM	#49
weehe126 Brigadier General 1256 Rep 3,317 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Guess I'll have to bust out the playdough to see how much room I have.
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11-13-2019, 01:39 AM	#50
streetpro Second Lieutenant 92 Rep 243 Posts Drives: e92 335iA Join Date: Nov 2018 Location: Prague iTrader: (0) Garage List 2006 Bmw e92 335iA [0.00]	e92 rwd sport 235/40/18 on 8x18 et40 and there is no "normal" way to fit any taller tyre... fender liner would get rubbed... __________________ "If everything seems under control, you're not going fast enough.” Mario Andretti
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11-13-2019, 01:37 PM	#52
weehe126 Brigadier General 1256 Rep 3,317 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	1mm it is, thanks a lot for the pics.
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11-13-2019, 03:49 PM	#53
Soravia Captain 127 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	Probably more if you put heat gun to fender liner rub spot. Heat a larger circle and push at the rub area that is not heated itself
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11-13-2019, 10:23 PM	#55
weehe126 Brigadier General 1256 Rep 3,317 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	I have fit 245/40/18 on my front and it rubbed for me. Im fully aware how tight it is. However, 225/45/18 fits just fine. It's the trade-off between height and width.
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11-14-2019, 12:06 AM	#56
Soravia Captain 127 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	I might be inclined to pull out the heat gun and see how much space there is to gain. I have to pull off the summer anyway to go back to winters. And still need to put in the LEDs. They won't go in with these wheels even at full lock.
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11-14-2019, 08:13 AM	#58
Soravia Captain 127 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	Tire Rack make their own measurements on the tires and list in the spec page. You can scroll down the list and see the differences. That's how I picked out the Potenza S-04 size vs the OE 225/45/17 that invites lots of curb damage. Last edited by Soravia; 11-14-2019 at 08:53 AM..
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03-13-2020, 11:38 PM	#59
Soravia Captain 127 Rep 598 Posts Drives: 2011 E91 Silver xDrive 6MT Join Date: Apr 2013 Location: Kentucky iTrader: (0)	No issues with rub when the car got Bilstein B6 HD dampers and new strut mounts along with new control arm bushings. Car has a nice gap even with these bigger wheels. They look like they belong on the car. OE set-up looks ridiculous. Attached Images Last edited by Soravia; 03-26-2020 at 02:20 PM..
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