Best rim specs for a stock m-package suspension

dm874 · 09-03-2015, 09:29 AM

Hey Everyone,
I want to get new rims for my car (CSL style) and want to know what rims specs (ex. 18x8 ET35) will work on my stock suspension. I don't want any spacers or camber or anything else, just a clean swap. I need to know what specs would work. I want 18" rims but can do 19" too.

Would Front: 19x8.5 Et 35 and Rear 19x9.5 Et40 work?

Thanks,

Dilmorecg · 09-03-2015, 01:10 PM

I would shoot for higher offset on both front and back...you will likely rub on both the front and back. Try et45 in front and et50 in the rear. VMR makes some CSL style offsets for our cars. Check out the VMR post.

Ankur194 · 09-03-2015, 03:51 PM

I have VMR VB3 18x8.5 ET40 front, 18x9.5 ET45 rear on sport suspension. It will occasionally rub through dips and over bumps when I have 3+ adults in the car, otherwise all clear. Tires are 225/40/18 and 255/35/18 Federal SS595.

Pyrat 2 · 09-03-2015, 08:24 PM

If you want to run stock tire sizes then the 45 front/50 rear combination is good advice. If you want to run something larger then the answer is 'it depends' and we need more information.

VMRWheels · 09-18-2015, 03:01 PM

OP, the recommended fitment for the 1er is going to be 18x8.5 ET45 in the front with a 225/40 and 18x9.5 ET50 in the rear with a 255/35. You can also get away with the ET45 in the rear, but it will be a tighter fit with a 255 tire.

John_01 · 09-26-2015, 04:16 AM

My suggestion:
18x8.0 ET42 with 225/40 on Front
18x9.0 ET52 with 255/35 on Rear

Eyeman · 09-26-2015, 11:10 PM

John01 nailed the best size question IMO. What would fit with work is a completely different question. Somebody is probably making the sizes you mentioned work, but it does not fit properly.

Most run worse fitting setups, mine is listed in my sig. I ended modding my rotors so I could get my 9.5 et45 rears to actually fit properly. The problem is finding wheels with the specs we need.

dm874 · 09-27-2015, 09:08 AM

^That's exactly the issue. The 1er is such an awkward car when it comes to fitment that it's difficult to find wheels that are the unique specs that you're actually looking for (Not just working but fitting properly too).

09-03-2015, 09:29 AM	#1
dm874 Lieutenant 84 Rep 501 Posts Drives: 15' M4 Join Date: Jul 2014 Location: Bucks County,PA iTrader: (0)	Best rim specs for a stock m-package suspension Hey Everyone, I want to get new rims for my car (CSL style) and want to know what rims specs (ex. 18x8 ET35) will work on my stock suspension. I don't want any spacers or camber or anything else, just a clean swap. I need to know what specs would work. I want 18" rims but can do 19" too. Would Front: 19x8.5 Et 35 and Rear 19x9.5 Et40 work? Thanks,
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09-03-2015, 01:10 PM	#2
Dilmorecg Second Lieutenant 115 Rep 256 Posts Drives: 2014 X5 50i Join Date: Feb 2014 Location: Gig Harbor, WA iTrader: (1)	I would shoot for higher offset on both front and back...you will likely rub on both the front and back. Try et45 in front and et50 in the rear. VMR makes some CSL style offsets for our cars. Check out the VMR post. __________________ 2014 X5 50i
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09-03-2015, 03:51 PM	#3
Ankur194 Private First Class 8 Rep 111 Posts Drives: One Two Eight Vert Join Date: Mar 2014 Location: Menifee iTrader: (0)	I have VMR VB3 18x8.5 ET40 front, 18x9.5 ET45 rear on sport suspension. It will occasionally rub through dips and over bumps when I have 3+ adults in the car, otherwise all clear. Tires are 225/40/18 and 255/35/18 Federal SS595.
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09-03-2015, 08:24 PM	#4
Pyrat 2 Colonel 1418 Rep 2,560 Posts Drives: Rapidly from A to B Join Date: Jun 2005 Location: Chicago 'burbs or TN Smokies iTrader: (3) Garage List 2022 Porsche GT4 [9.64] 2018 Porsche GT3 [9.33] 2007 Z4 M Roadster [8.33] 2020 BMW X1 [0.00]	If you want to run stock tire sizes then the 45 front/50 rear combination is good advice. If you want to run something larger then the answer is 'it depends' and we need more information.
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09-18-2015, 03:01 PM	#5
VMRWheels General 2038 Rep 25,989 Posts Drives: BMW Join Date: Jun 2007 Location: Anaheim, CA iTrader: (4) Garage List 2013 BMW M3 [10.00] 2015 BMW M4 [0.00] 2013 BMW F30 [0.00] 2014 BMW F22 [0.00] 2013 BMW F06 [0.00]	OP, the recommended fitment for the 1er is going to be 18x8.5 ET45 in the front with a 225/40 and 18x9.5 ET50 in the rear with a 255/35. You can also get away with the ET45 in the rear, but it will be a tighter fit with a 255 tire. __________________ VMR\|Wheels \| 714.442.7916 \| sales@velocitymotoring.com \| www.velocitymotoring.com \| facebook \| flickr \| Instagram
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09-26-2015, 04:16 AM	#6
John_01 Colonel 232 Rep 2,643 Posts Drives: E90 325i, E82 135i Join Date: Mar 2009 Location: Sydney, Australia iTrader: (0)	My suggestion: 18x8.0 ET42 with 225/40 on Front 18x9.0 ET52 with 255/35 on Rear
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09-26-2015, 11:10 PM	#7
Eyeman Colonel 121 Rep 2,036 Posts Drives: 2008 135 blk, blk, step Join Date: Jan 2009 Location: Atlanta, GA iTrader: (0) Garage List 1994 Porsche 968 Cab [0.00] 2017 AMG GTS [0.00] 1994 Porsche 968 Coupe [0.00] 1977 Mercedes 450SE ... [0.00] 2008 135 [8.00]	John01 nailed the best size question IMO. What would fit with work is a completely different question. Somebody is probably making the sizes you mentioned work, but it does not fit properly. Most run worse fitting setups, mine is listed in my sig. I ended modding my rotors so I could get my 9.5 et45 rears to actually fit properly. The problem is finding wheels with the specs we need. __________________ Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, iCarbon diffuser, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod, Ebay Mstyle front bumper and performance style side skirts.
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09-27-2015, 09:08 AM	#8
dm874 Lieutenant 84 Rep 501 Posts Drives: 15' M4 Join Date: Jul 2014 Location: Bucks County,PA iTrader: (0)	^That's exactly the issue. The 1er is such an awkward car when it comes to fitment that it's difficult to find wheels that are the unique specs that you're actually looking for (Not just working but fitting properly too).
	Appreciate 0 Quote