E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > 235/35R19 [Front] 275/30R19 [Rear]



Reply
 
Thread Tools Search this Thread
      04-10-2010, 01:34 PM   #1
awestland
Enlisted Member
1
Rep
44
Posts

Drives: 2006 330xi
Join Date: Dec 2009
Location: Toronto, ON Canada

iTrader: (0)

235/35R19 [Front] 275/30R19 [Rear]

Hi All,

I've got an 06 330xi and from everything I've learned so far about the x-drive differential (+/- 1%) and the pre-lci E90 tire spacing, I'm fairly confident that these will fit using standard E9X offsets (35-37). The thing is, I haven't been able to find anyone else running this setup and I can't seem to figure out why.

Based on the tire calculator at 1010tires.com this setup provides the most equal front/back rolling diameter out of any other setup.

It only has a 0.08% difference.

For reference, the more popular 235/35R19 [Front] 265/30R19 [Rear] has a rolling diameter difference of 0.87%

My question is; Why haven't more people gone with the 275 in the back vs the 265? I figure that the closer to 0.00% diameter difference the better, or does it not matter as long as it's below 1%?

Any insight would be great.

Thanks,
Adam Westland
Appreciate 0
      04-10-2010, 01:58 PM   #2
topcat87
Banned
No_Country
12
Rep
357
Posts

Drives: F30
Join Date: Sep 2009
Location: Here

iTrader: (3)

mines not an xi but im running that setup search my name
Appreciate 0
      04-10-2010, 01:58 PM   #3
clickclickboom
Private First Class
3
Rep
104
Posts

Drives: Por she
Join Date: Oct 2008
Location: Over here

iTrader: (0)

That is the set I use. I have a slight rub every now and then on the drivers rear. No biggie. I think others stick to 265's because of the slammed drops their cars have.
Appreciate 0
      04-10-2010, 02:43 PM   #4
Nikolas
Colonel
20
Rep
2,069
Posts

Drives: 996 TT
Join Date: Jul 2007
Location: Sierra Mountains

iTrader: (0)

I have that on my e90 with no rubbing. Make sure to not just use the calculator and check the actual specs from the manufacturer. Tire rack has all the actual dimensions on the site. Actual diameter sizes can vary as much as 1/2" on any given size.
Appreciate 0
      04-10-2010, 02:59 PM   #5
Wonka
Racer 5
Wonka's Avatar
United_States
15
Rep
823
Posts

Drives: '09 E92 335i xDrive M Sport
Join Date: Mar 2009
Location: MD

iTrader: (3)

Garage List
My 335i X Drive has 235/35 and 265/30. I opted for the 265 over the 275 for less rub potential.
Appreciate 0
      04-11-2010, 06:45 PM   #6
headlee103
Lieutenant Colonel
headlee103's Avatar
24
Rep
1,624
Posts

Drives: e90 335xi
Join Date: Feb 2009
Location: Bethlehem, PA

iTrader: (4)

Garage List
2007 328xi  [5.00]
Im running that setup on my 2007 e92 xi. I went with it solely because of % difference, which is zero so it sounded goo to me. When I would have 2 passangers in my back seat I would rub occasionally, but nothing too bad. I have recently dropped my car on H&R sport springs, and had my fenders rolled. Depending on your offset you may not even need to roll the fenders if you are going to drop it.
Appreciate 0
      04-12-2010, 01:18 AM   #7
Nikolas
Colonel
20
Rep
2,069
Posts

Drives: 996 TT
Join Date: Jul 2007
Location: Sierra Mountains

iTrader: (0)

Again, check the actual tire specs, as it will not always be a "zero" difference, depending on the manufacturer.
Appreciate 0
      04-12-2010, 06:39 PM   #8
stratplaya06
Captain
stratplaya06's Avatar
United_States
11
Rep
886
Posts

Drives: 2008 E92 335xi
Join Date: May 2008
Location: Maryland

iTrader: (7)

Here's how is usually is
265: no rubbing, difference in % is still below 1, which people seem to adhere to for some reason
275: rub potential, but easiest on transfer case. I also believe that even that little bit more sidewall gives you more rim protection.

I have the 275's in michelin ps2 (extremely square) out back with a small fender roll and am very glad I went with the wider size.
__________________

| PROcede Rev3 | Vishnu Meth | DCI | BMW Perf. Exhaust | AR Coated/Catless | CP-E FMIC | Quaife |
Appreciate 0
      04-12-2010, 07:17 PM   #9
GreenPlease
Lieutenant Colonel
GreenPlease's Avatar
United_States
43
Rep
1,635
Posts

Drives: BMW 335i e92
Join Date: Feb 2008
Location: Orlando Florida

iTrader: (2)

Should be fine with 275/30. Lot's of non-xdrive guys run that in the rear (Vuduforu2 is one off the top of my head, he runs Vredesteins)
__________________
Cars>Women
Appreciate 0
      04-12-2010, 11:40 PM   #10
Darth Bobo
Private
2
Rep
52
Posts

Drives: 2010 E92 335xi
Join Date: May 2007
Location: Vancouver

iTrader: (0)

I have 235/275 19" RE760S and have not rubbed yet on stock suspension. I think it will be close and may need a roll when I drop on V1's. Wheels are SF71 8.5/9.5 ET35.
Appreciate 0
      04-12-2010, 11:40 PM   #11
Darkcyd_Turbo
"Booty Hole Bandit"
Darkcyd_Turbo's Avatar
Philippines
17
Rep
1,591
Posts

Drives: 2008 Montego E92 335xi
Join Date: Apr 2009
Location: Madison, WI

iTrader: (14)

Send a message via AIM to Darkcyd_Turbo Send a message via Yahoo to Darkcyd_Turbo
my lc dynas on my e92 xi are F:19x8.5 et30 w/ 235/35/19's & R:19x10 et37 w/ 275/30/19's

I'm not lowered but i know i'll rub when i do. But I already plan on rolling my fenders so it doesn't matter.
__________________
2008 Montego Blue E92 335xi - MT - Sport - Cold Weather - Nav - iDrive - PDC - Logic7 - CA
MODS: Unknown
Appreciate 0
      04-13-2010, 09:38 AM   #12
windowsM
Banned
4
Rep
177
Posts

Drives: Black Car
Join Date: Mar 2010
Location: Bawstin, NH

iTrader: (0)

Interesting, because it's the opposite with 18" tires. 235/265 is <1% and 235/275 is >1%.
Appreciate 0
      04-14-2010, 10:39 AM   #13
jpsimon
Team Zissou
jpsimon's Avatar
United_States
176
Rep
9,023
Posts

Drives: 335 (sold)
Join Date: Dec 2006
Location: CT

iTrader: (7)

I've been running 235/35, 275/30 (19x10 in the rear) with no rubbing at all on toyo T1R's on my XI dropped with v3's.
__________________
335xi (sold)
www.datazap.me - fast, free, interactive data log viewing

Appreciate 0
      04-18-2010, 08:50 PM   #14
Enicinitas
First Lieutenant
United_States
4
Rep
321
Posts

Drives: Gray Coupe
Join Date: Feb 2010
Location: Left Coast

iTrader: (8)

JPSimon,

What is the size of your front Forgestar's.

I just got the same size as yours in the rear and am running the same tire size too.

**********s rec'd that I run 245/35 in front (19 x 8.5). Anyway, just curious because I've had major tracking issues to the right even after two different shops have attempted to align my vehicle.

On the old sport wheels/runflats w/ eibach/koni fsd, it used to track super straight.

Did you get a Camber kit, or, have any similar experience?

Thx
Appreciate 0
      04-03-2012, 10:12 AM   #15
JTWCT
Private First Class
JTWCT's Avatar
Taiwan
1
Rep
150
Posts

Drives: 09 328xi E92, 14 Cayenne GTS
Join Date: Dec 2011
Location: Fairfield County, Connecticut

iTrader: (3)

Does anyone run spacers on with that setup? 235/35R19 [Front] 275/30R19 [Rear]

I plan on keeping my E92 328xi on stock suspension. Thanks!
Appreciate 0
      04-03-2012, 10:45 AM   #16
335xi Stunt'
E92 xi AW/Coral Red
335xi Stunt''s Avatar
United_States
9
Rep
623
Posts

Drives: your girl crazy
Join Date: Oct 2011
Location: North NJ

iTrader: (6)

im lowered on HR sports, im running 235-35-19 fronts , 265-30-19's rear..
i do want to upgrade rears to 275 because of the circumference differents. its better on the transfer case clutches. if you guys wanna save money, i would upgrade rears to 275. but then the thing is, i do not want my fenders rolled.. and i will rub on 275's -.-
willing to trade my 265-30-19 rears almost brand new Hankook v12's for 275 rears in the east coast local =)
Appreciate 0
      04-03-2012, 10:46 AM   #17
335xi Stunt'
E92 xi AW/Coral Red
335xi Stunt''s Avatar
United_States
9
Rep
623
Posts

Drives: your girl crazy
Join Date: Oct 2011
Location: North NJ

iTrader: (6)

i wouldnt recommend spacers.....

Quote:
Originally Posted by JTWCT View Post
Does anyone run spacers on with that setup? 235/35R19 [Front] 275/30R19 [Rear]

I plan on keeping my E92 328xi on stock suspension. Thanks!
Appreciate 0
      04-03-2012, 10:53 AM   #18
JTWCT
Private First Class
JTWCT's Avatar
Taiwan
1
Rep
150
Posts

Drives: 09 328xi E92, 14 Cayenne GTS
Join Date: Dec 2011
Location: Fairfield County, Connecticut

iTrader: (3)

Quote:
Originally Posted by 335xi Stunt' View Post
i wouldnt recommend spacers.....
I was talking to a guy that ran 12mm spacers on the front wheels for this"
235/35R19 w/ 19 8.5 ET35
275/30R19 w/ 19 9.5 ET35
Stock E92 xDrive suspension

He said that it helped with under/oversteer. Why wouldn't you recommend spacer? I'm just trying to figure out what's best. I'd rather not spend extra money on spacers unless it makes a difference.
Appreciate 0
      04-03-2012, 10:57 AM   #19
335xi Stunt'
E92 xi AW/Coral Red
335xi Stunt''s Avatar
United_States
9
Rep
623
Posts

Drives: your girl crazy
Join Date: Oct 2011
Location: North NJ

iTrader: (6)

it wasnt recommended by my bmw tech who helped me pick my tires for the xi.
Appreciate 0
      04-03-2012, 10:58 AM   #20
335xi Stunt'
E92 xi AW/Coral Red
335xi Stunt''s Avatar
United_States
9
Rep
623
Posts

Drives: your girl crazy
Join Date: Oct 2011
Location: North NJ

iTrader: (6)

its basically running a more aggressive offset. make sure you know what your doing with the offsets so you dont fry your transfer case =)
Appreciate 0
      04-03-2012, 11:57 AM   #21
danniexi
Colonel
danniexi's Avatar
South Korea
36
Rep
2,108
Posts

Drives: 2008 AW E92 335xi
Join Date: May 2008
Location: NJ

iTrader: (14)

running 235/275 lowered. rolled my rear fenders and havent rubbed once.
Appreciate 0
      04-03-2012, 04:18 PM   #22
deezofchuck
Lieutenant
9
Rep
511
Posts

Drives: OVER SLOW LEFT LANE DRIVERS!
Join Date: Apr 2011
Location: NOVA

iTrader: (3)

What rim widths are you running with? Anyone has 9 in the front and 10 in the rear?
Appreciate 0
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
Forum Jump


All times are GMT -4. The time now is 07:14 AM.




e90post
e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, 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