THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics Wheels and Tires -- Sponsored by The Tire Rack 18X9 - 255 Front Possible

Post Reply
 
Thread Tools Search this Thread
      01-10-2019, 11:20 AM   #1
Taskmaster
Major General
Taskmaster's Avatar
Japan
2370
Rep
9,102
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

18X9 - 255 Front Possible

Hey guys,

I ran across this thread while looking for a 18X9 Square setup

https://www.1addicts.com/forums/showthread.php?t=216972

Quote:
Originally Posted by Fair View Post








We test fit a set of 18x9" (ET41 D-Force LTW5) onto a customers 135i recently. Seemed to work fine to me... :iono:

Any car this heavy needs as much tire as you can possibly stuff underneath it. The rear can handle more than a 9", but then you're going back to a staggered set-up which means more understeer. BMWs work best with the same wheel/tire widths front and rear. The 18x9 wheel on the back of this car would have worked better with more backspacing, pushing the wheel inboard more. From my testing, I think an 18x9 ET45 to ET48 offset would be ideal out back (and the same set-up with a 10mm spacer up front would make tire rotations easy).

An 8" wheel should fit with ease. That's still too narrow, but it would work. Anything to get the boat anchor factory wheels + run flat tires off these cars is a good thing.



48.3 pounds for the OEM front wheel + a replacement tire, and that's not even a run flat (which are even heavier, and ride/handle worse). That is abysmal for such a skinny wheel and tire. Those brakes are also MASSIVELY heavy. Its no wonder why these cars push 3450 pounds... but it can be fixed.

For me, the appeal is to have a slight stretch on the rubber for fitment and better sidewall support vs the 18X8.5. Would something like this work for the F22?
__________________
M235i 6MT - intake, downpipe, intercooler, JB4 - Coming soon: Pure Inlet, MILVS, BPC tune.

Buy my E9X stuff: https://www.e90post.com/forums/showthread.php?t=1540470
Appreciate 0
      01-10-2019, 03:51 PM   #2
gtmax500
Private First Class
United_States
59
Rep
128
Posts

Drives: 2016 MW M235xi
Join Date: Sep 2015
Location: Annapolis, MD

iTrader: (0)

Garage List
2016 BMW M235xi  [0.00]
I've been researching wheel fitments for our 2 series for quite a while before I settled on 17x8.5 with 255 square for my track set up. I would be HIGHLY surprised if you were able to fit a 18x9 in the front even with some serious camber dialed in.

I believe 18x8.5 255 square with at least 2.5* camber is about as wide as we can go without rubbing. Even that is still wheel/offset dependent.

I can't quite remember but I don't recall coming across anyone with 18x9s up front but I could be wrong.
Appreciate 0
      01-10-2019, 04:13 PM   #3
dradernh
Captain
237
Rep
607
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by gtmax500 View Post
I can't quite remember but I don't recall coming across anyone with 18x9s up front but I could be wrong.
I went with 17X9 ET42 -1.9 with no spacer and a very slight fender roll up front.
__________________
2017 M240i: MT, Moonroof Delete, EB, Black Dakota Leather, Driving Assistance Package, Heated Front Seats
TC Kline Coilover Kit; EDC/eLSD Delete; Wavetrac; Al Subframe Bushings; ARC-8 - 18X9 & 17X9; R888R - 255/35-18 & 255/40-17; Hawk DTC70 Pads; Schroth Quick Fit Pro 4-Point Harnesses
Appreciate 0
      01-10-2019, 04:36 PM   #4
Taskmaster
Major General
Taskmaster's Avatar
Japan
2370
Rep
9,102
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

Quote:
Originally Posted by dradernh View Post
I went with 17X9 ET42 -1.9 with no spacer and a very slight fender roll up front.
Would 18's work equally as well as the 17s?
__________________
M235i 6MT - intake, downpipe, intercooler, JB4 - Coming soon: Pure Inlet, MILVS, BPC tune.

Buy my E9X stuff: https://www.e90post.com/forums/showthread.php?t=1540470
Appreciate 0
      01-10-2019, 04:59 PM   #5
dradernh
Captain
237
Rep
607
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by Taskmaster View Post
Would 18's work equally as well as the 17s?
I don't know, but I think it's the size of the tire that is the limiting factor (i.e. that's what rubs, whether on the inside against the suspension or on the outside against the fender or the fender liner).
__________________
2017 M240i: MT, Moonroof Delete, EB, Black Dakota Leather, Driving Assistance Package, Heated Front Seats
TC Kline Coilover Kit; EDC/eLSD Delete; Wavetrac; Al Subframe Bushings; ARC-8 - 18X9 & 17X9; R888R - 255/35-18 & 255/40-17; Hawk DTC70 Pads; Schroth Quick Fit Pro 4-Point Harnesses
Appreciate 0
      01-10-2019, 05:04 PM   #6
Taskmaster
Major General
Taskmaster's Avatar
Japan
2370
Rep
9,102
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

Quote:
Originally Posted by dradernh View Post
I don't know, but I think it's the size of the tire that is the limiting factor (i.e. that's what rubs, whether on the inside against the suspension or on the outside against the fender or the fender liner).
Have a picture how your tire and wheel look currently mounted?
__________________
M235i 6MT - intake, downpipe, intercooler, JB4 - Coming soon: Pure Inlet, MILVS, BPC tune.

Buy my E9X stuff: https://www.e90post.com/forums/showthread.php?t=1540470
Appreciate 0
      01-10-2019, 05:35 PM   #7
dradernh
Captain
237
Rep
607
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by Taskmaster View Post
Have a picture how your tire and wheel look currently mounted?
Below are the only shots I have with the 17X9 wheel and the 255/40-17 tire on the car.

The rear is 18X9 ET58 -1.6 with a 5mm spacer and a 255/35-18 tire. The drop is 1" in front and 1" in the rear.





__________________
2017 M240i: MT, Moonroof Delete, EB, Black Dakota Leather, Driving Assistance Package, Heated Front Seats
TC Kline Coilover Kit; EDC/eLSD Delete; Wavetrac; Al Subframe Bushings; ARC-8 - 18X9 & 17X9; R888R - 255/35-18 & 255/40-17; Hawk DTC70 Pads; Schroth Quick Fit Pro 4-Point Harnesses
Appreciate 1
Taskmaster2369.50

      01-10-2019, 06:50 PM   #8
Taskmaster
Major General
Taskmaster's Avatar
Japan
2370
Rep
9,102
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

Quote:
Originally Posted by dradernh View Post
Below are the only shots I have with the 17X9 wheel and the 255/40-17 tire on the car.

The rear is 18X9 ET58 -1.6 with a 5mm spacer and a 255/35-18 tire. The drop is 1" in front and 1" in the rear.





Awesome. Awesome! Thank you!
Appreciate 0
      01-11-2019, 10:11 AM   #9
cxp213
Lieutenant
cxp213's Avatar
290
Rep
567
Posts

Drives: M235i
Join Date: Apr 2017
Location: TX

iTrader: (0)

Quote:
Originally Posted by dradernh View Post
Below are the only shots I have with the 17X9 wheel and the 255/40-17 tire on the car.

The rear is 18X9 ET58 -1.6 with a 5mm spacer and a 255/35-18 tire. The drop is 1" in front and 1" in the rear.

[IMG]http://u.cubeupload.com/EdWinter377/f36M240iShowingFitmento.jpg[IMG]

[IMG]http://u.cubeupload.com/EdWinter377/M240iwithApexWheelsT.jpg[IMG]

[IMG]http://u.cubeupload.com/EdWinter377/M240iShowingFitmento.jpg[IMG]
Nice to see someone running 255s all around. What is your full suspension and alignment spec?
Appreciate 0
      01-11-2019, 01:48 PM   #10
dradernh
Captain
237
Rep
607
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by cxp213 View Post
Nice to see someone running 255s all around. What is your full suspension and alignment spec?
The build is detailed here: https://www.2addicts.com/forums/show....php?t=1532418
__________________
2017 M240i: MT, Moonroof Delete, EB, Black Dakota Leather, Driving Assistance Package, Heated Front Seats
TC Kline Coilover Kit; EDC/eLSD Delete; Wavetrac; Al Subframe Bushings; ARC-8 - 18X9 & 17X9; R888R - 255/35-18 & 255/40-17; Hawk DTC70 Pads; Schroth Quick Fit Pro 4-Point Harnesses
Appreciate 0
      01-22-2019, 02:46 AM   #11
230iZTR
Private
14
Rep
87
Posts

Drives: Alpine White 230i THP
Join Date: Oct 2017
Location: Reno, NV

iTrader: (0)

Ive been looking at 3 different width/offset combinations to fit a 255 square setup (either Michelin Sport Cup 2 or Bridgestone Re-71R) with Vorshlag camber plates are hen the tax returns come in, and Id like to see if anyone has tried these before:

1. 17x8.5et40 (concerned itll poke way too far out in the rear)
2. 17x9et42 (concerned itll rub in front)
3. 18x9et42 (would open up tire selection, but again could rub)

How much camber would I need to make such a setup work? Would rolling the fenders help? Would it be at all streetable?
Appreciate 0
      01-22-2019, 01:13 PM   #12
Taskmaster
Major General
Taskmaster's Avatar
Japan
2370
Rep
9,102
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

Quote:
Originally Posted by 230iZTR View Post
Ive been looking at 3 different width/offset combinations to fit a 255 square setup (either Michelin Sport Cup 2 or Bridgestone Re-71R) with Vorshlag camber plates are hen the tax returns come in, and Id like to see if anyone has tried these before:

1. 17x8.5et40 (concerned itll poke way too far out in the rear)
2. 17x9et42 (concerned itll rub in front)
3. 18x9et42 (would open up tire selection, but again could rub)

How much camber would I need to make such a setup work? Would rolling the fenders help? Would it be at all streetable?
I'm not sure specifically, but expect to run over 2.5* which is streetable. I saw a few track builds that have 18X9 42 on ARC8s
__________________
M235i 6MT - intake, downpipe, intercooler, JB4 - Coming soon: Pure Inlet, MILVS, BPC tune.

Buy my E9X stuff: https://www.e90post.com/forums/showthread.php?t=1540470
Appreciate 0
      01-25-2019, 12:45 PM   #13
bbnks2
Major
694
Rep
1,371
Posts

Drives: 135i N55
Join Date: Jan 2017
Location: NY

iTrader: (0)

You can fit 17 or 18 x 9 wheels with 40 series or 35 series tires, respectively. 17's with 255/40/17 is the cheaper and lighter tire/setup which is why it's the go-to over 18's. You need ET38 or lower to avoid rubbing on the strut which is why all those people with ET42 or ET45 wheels have small spacers. You will also need 2.0*+ of camber and a fender roll. It fits, but it takes a little work.

Some people claim to not need the fender roll. I think ride height plays a factor in this...

The reason why ET45 is a popular offset is because you need a higher offset in the rear. 17x9 ET45 might rub on the outside fender a bit. Again, ride height and camber dependent. If you want to keep rear camber in check at like 1.5-2.0* you might need to roll the rear fenders to fit a meaty 255. Or, run a higher offset wheel in the rear. Problem with running a high offset in the rear is that the track width difference starts to impact handling characteristics and you end up with a drift car setup lol
__________________
135i: E30 map by TwistedTuning, VRSF DP, Kerscher +15mm fenders, Kosei K8R 255/40/17, M3 control arms, UUC trans mounts, DV+, Whiteline RSFB, 5" intercooler, Charge Pipe, PC925 (23lb), UUC SSK, YCW Coilovers 6k/16k, Monroe shock mounts, Diff lockdown, Catch Can, N20 TMAP, 335is clutch, SMFW, 034 engine mounts, M3 Steering rack

Last edited by bbnks2; 01-25-2019 at 12:52 PM.
Appreciate 0
      01-25-2019, 12:51 PM   #14
Taskmaster
Major General
Taskmaster's Avatar
Japan
2370
Rep
9,102
Posts

Drives: M235i 6MT / E92 328 Msport 6MT
Join Date: Nov 2013
Location: Florida

iTrader: (6)

Quote:
Originally Posted by bbnks2 View Post
You can fit 17 or 18 x 9 wheels with 40 series or 35 series tires, respectively. 17's with 255/40/17 is the cheaper and lighter tire/setup which is why it's the go-to over 18's. You need ET38 or lower to avoid rubbing on the strut which is why all those people with ET42 or ET45 wheels have small spacers. You will also need 2.0*+ of camber and a fender roll. It fits, but it takes a little work.

Some people claim to not need the fender roll. I think ride height plays a factor in this...

The reason why ET45 is a popular offset is because you need a higher offset in the rear. 17x9 ET45 might rub on the outside fender a bit. Again, ride height and camber dependent. If you want to keep rear camber in check at like 1.5-2.0* you might need to roll the rear fenders to fit a meaty 255. Or, run a higher offset wheel in the rear. Problem with that is that the track width difference starts to impact handling characteristics.
Tire size will be 255/35 or 255/40 - I'm leaning on 18s purely for aesthetic reasons. It looks like a 5mm spacer will likely be needed with anything ins the 40-45ET.

It will be DD with about 2* camber, or 2.5* if I can tolerate it.
__________________
M235i 6MT - intake, downpipe, intercooler, JB4 - Coming soon: Pure Inlet, MILVS, BPC tune.

Buy my E9X stuff: https://www.e90post.com/forums/showthread.php?t=1540470
Appreciate 0
      01-30-2019, 11:38 AM   #15
Useless Comment
Private First Class
37
Rep
122
Posts

Drives: 2019 M240i xDrive
Join Date: Oct 2015
Location: Long Island

iTrader: (0)

Quote:
Originally Posted by bbnks2 View Post
You can fit 17 or 18 x 9 wheels with 40 series or 35 series tires, respectively. 17's with 255/40/17 is the cheaper and lighter tire/setup which is why it's the go-to over 18's. You need ET38 or lower to avoid rubbing on the strut which is why all those people with ET42 or ET45 wheels have small spacers. You will also need 2.0*+ of camber and a fender roll. It fits, but it takes a little work.

Some people claim to not need the fender roll. I think ride height plays a factor in this...

The reason why ET45 is a popular offset is because you need a higher offset in the rear. 17x9 ET45 might rub on the outside fender a bit. Again, ride height and camber dependent. If you want to keep rear camber in check at like 1.5-2.0* you might need to roll the rear fenders to fit a meaty 255. Or, run a higher offset wheel in the rear. Problem with running a high offset in the rear is that the track width difference starts to impact handling characteristics and you end up with a drift car setup lol
So I have a set of square Apex Arc-8s
17x9 ET 30 shod with Bridgestone Potenza S04s 255x40-17 left over from my 2008 E90. I'd love it if I could fit these wheel to my new '19 M240i xdrive. Stock wheels definitely undertired for this car and would be relegated to winter snows. Will the et 30 offset be an issue? Will it fit calculators show reasonable strut clearance with some poke, which I could live with if it doesn't look too ridiculous. The Bridgestones are also at the end of their life, so new tires are also a consideration in the calculation. Any one running a similar setup? Mods, ie fender roll, camber plates necessary for it to work? I will probably just try them on in the spring to check any way, unless the consensus is that this definitely won't work. BTW I'm partial to a meatier fitment rather than worrying about fender gap. Thanks.
__________________
Retired: '08 335xi E90. "Long may you run."
Appreciate 0
      01-30-2019, 11:51 AM   #16
bbnks2
Major
694
Rep
1,371
Posts

Drives: 135i N55
Join Date: Jan 2017
Location: NY

iTrader: (0)

Quote:
Originally Posted by Hpirx View Post
So I have a set of square Apex Arc-8s
17x9 ET 30 shod with Bridgestone Potenza S04s 255x40-17 left over from my 2008 E90. I'd love it if I could fit these wheel to my new '19 M240i xdrive. Stock wheels definitely undertired for this car and would be relegated to winter snows. Will the et 30 offset be an issue? Will it fit calculators show reasonable strut clearance with some poke, which I could live with if it doesn't look too ridiculous. The Bridgestones are also at the end of their life, so new tires are also a consideration in the calculation. Any one running a similar setup? Mods, ie fender roll, camber plates necessary for it to work? I will probably just try them on in the spring to check any way, unless the consensus is that this definitely won't work. BTW I'm partial to a meatier fitment rather than worrying about fender gap. Thanks.
Try it and let us all know? I was replying to the E82 fitment he was quoting. I am pretty sure 2-series fitment is more similar to 1-series than it is the 3-series. I think ET30 will hit the fenders both front and rear but get back to us with what you find.
__________________
135i: E30 map by TwistedTuning, VRSF DP, Kerscher +15mm fenders, Kosei K8R 255/40/17, M3 control arms, UUC trans mounts, DV+, Whiteline RSFB, 5" intercooler, Charge Pipe, PC925 (23lb), UUC SSK, YCW Coilovers 6k/16k, Monroe shock mounts, Diff lockdown, Catch Can, N20 TMAP, 335is clutch, SMFW, 034 engine mounts, M3 Steering rack
Appreciate 0
      01-30-2019, 11:53 AM   #17
Useless Comment
Private First Class
37
Rep
122
Posts

Drives: 2019 M240i xDrive
Join Date: Oct 2015
Location: Long Island

iTrader: (0)

I will, but probably not until May!
__________________
Retired: '08 335xi E90. "Long may you run."
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 04:04 PM.




2addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST