18x8.5 ET 35 and 18x9.5 ET 40. Am I dreaming?

zeeth2800 · 06-10-2015, 06:01 PM

Is this setup even slightly reasonable on a 1er? I am thinking it is time for new wheels on my 2008 135i and I have found a set I am drooling over.

kprocivic · 06-10-2015, 06:03 PM

front will need at least 10mm spacer rear should be fine. Don't quote me though.

zeeth2800 · 06-10-2015, 06:05 PM

Quote:

Originally Posted by kprocivic

front will need at least 10mm spacer rear should be fine. Don't quote me though.

The front would need a spacer? That seems wrong. I thought the front wheels were like +48 factory?

kevin @ eas · 06-10-2015, 06:25 PM

Quote:

Originally Posted by zeeth2800

Is this setup even slightly reasonable on a 1er? I am thinking it is time for new wheels on my 2008 135i and I have found a set I am drooling over.

I would stick with an et 50 on up in the rear. 18x9.5 et 50 you can run a 255 rear. ET 58 on up you can run a 265 in most cases.

Front stick with a 18x8.5 et 45 so you can fit a 235 up front.If anything with a 18x8.5 et 35 you will have problems sticking out too far.

lowside67 · 06-10-2015, 08:24 PM

Fronts:
Here is a 9.0 ET45 with a 12mm spacer, so effectively a 9.0 ET 33

Going from that above 9.0 ET33 to a 8.5 ET35 increases inside clearance on the strut by 3mm and increases outside clearance on the fender by 9mm. If you have coilovers and the spring perch is above the tire then that 8.5 +35 will bolt right on with no issues and should be fine on the fender as long as you have some camber.

Rears:
With respect to the rears, from another thread, this is a 9.5 ET50, so a full 10mm more outer fender clearance than your proposed 9.5 ET40:

I am not going to say it "cant" fit as there is a wide range in what people consider acceptable, but my definition is that you can use the proper size tire and have full range of suspension movement with NO rubbing of any sort. It is unlikely IMO that criteria will be true with an ET40.

Hope this is helpful,
Mark

135TX · 06-10-2015, 08:25 PM

You are dreaming unless you like the stanched civic look.
The fronts wouldn't be that bad but you will need 2+ camber and you could run 225/35 or perhaps 245/35 with a roll. I'd say 235 but since they typically are only in 235/40 it's just too talk.
In the rear no way. You will need like 3+ camber and could run 245s and might rub.

Pothole · 06-11-2015, 11:30 AM

I'm running 35 in front and 42 in the back. Stock tires though so there is some stretch. I also run coilovers. No rubbing whatsoever.

35 in front doesn not need a spacer, unless you run coilovers and want them all the way down.

Boosted_N54 · 02-21-2016, 12:53 AM

Quote:

Originally Posted by kevin @ eas

I would stick with an et 50 on up in the rear. 18x9.5 et 50 you can run a 255 rear. ET 58 on up you can run a 265 in most cases.

Front stick with a 18x8.5 et 45 so you can fit a 235 up front.If anything with a 18x8.5 et 35 you will have problems sticking out too far.

i dont understand how my vmr wheels 18x8.5 et45 FRONT can't even fit a 235
I'm running a 225 (( FLUSH FIT no room for more tire )) with a 7mm spacer for coilover perch clearance

Eyeman · 02-21-2016, 07:31 PM

GRK, if you perch interferes it makes sense to me. An 8.5et45 would have less and 1mm before it would hit my strut. And then with my et42s I had some fender rubbing issues when I ran 235s. There just isn't much room up there unless you get camber plates.

Boosted_N54 · 02-21-2016, 09:13 PM

Quote:

Originally Posted by Eyeman

GRK, if you perch interferes it makes sense to me. An 8.5et45 would have less and 1mm before it would hit my strut. And then with my et42s I had some fender rubbing issues when I ran 235s. There just isn't much room up there unless you get camber plates.

i got camber KW camber plates

06-10-2015, 06:01 PM	#1
zeeth2800 Private First Class 37 Rep 183 Posts Drives: 08 135i, 89 M3 Join Date: Oct 2013 Location: Corvallis, OR iTrader: (0)	18x8.5 ET 35 and 18x9.5 ET 40. Am I dreaming? Is this setup even slightly reasonable on a 1er? I am thinking it is time for new wheels on my 2008 135i and I have found a set I am drooling over. __________________ 2008 135i SGM 6-Speed l AD Engineering ST 6262BB l MHD Tuned l MAXBoost/N20 Map l GFB electronic boost controller l Spec 2+ l Walbro 450 LPFP l VRSF 7" FMIC l VRSF CP l Tial BOV l BMR 3.5" Exhaust l BMS Catch Can l RB pcv l
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06-10-2015, 06:03 PM	#2
kprocivic Lieutenant Colonel 813 Rep 1,575 Posts Drives: ecoboost s to the t Join Date: Apr 2014 Location: 92346 iTrader: (7)	front will need at least 10mm spacer rear should be fine. Don't quote me though.
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06-10-2015, 08:24 PM	#5
lowside67 First Lieutenant 219 Rep 361 Posts Drives: 2011 BMW 128i Join Date: Apr 2015 Location: Vancouver, Canada iTrader: (0)	Fronts: Here is a 9.0 ET45 with a 12mm spacer, so effectively a 9.0 ET 33 Going from that above 9.0 ET33 to a 8.5 ET35 increases inside clearance on the strut by 3mm and increases outside clearance on the fender by 9mm. If you have coilovers and the spring perch is above the tire then that 8.5 +35 will bolt right on with no issues and should be fine on the fender as long as you have some camber. Rears: With respect to the rears, from another thread, this is a 9.5 ET50, so a full 10mm more outer fender clearance than your proposed 9.5 ET40: I am not going to say it "cant" fit as there is a wide range in what people consider acceptable, but my definition is that you can use the proper size tire and have full range of suspension movement with NO rubbing of any sort. It is unlikely IMO that criteria will be true with an ET40. Hope this is helpful, Mark Last edited by lowside67; 06-10-2015 at 08:30 PM..
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06-11-2015, 11:30 AM	#7
Pothole Second Lieutenant 14 Rep 250 Posts Drives: E88 125i, RR sport 3.0tdv6 Join Date: Sep 2013 Location: Netherlands iTrader: (0)	I'm running 35 in front and 42 in the back. Stock tires though so there is some stretch. I also run coilovers. No rubbing whatsoever. 35 in front doesn not need a spacer, unless you run coilovers and want them all the way down. __________________ BMW E88 125i - Tunex Tuned@ 228whp - Cyba Scoops - Performance Kidneys - Performance Exhaust - Performance Intake - BMW Strutbar - 3d Design Carbon Diffuser - Blacklines - Golf Tee - FK Coilovers - Klutch SL14
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02-21-2016, 07:31 PM	#9
Eyeman Colonel 119 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]	GRK, if you perch interferes it makes sense to me. An 8.5et45 would have less and 1mm before it would hit my strut. And then with my et42s I had some fender rubbing issues when I ran 235s. There just isn't much room up there unless you get camber plates. __________________ 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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