Half inch difference OR Inch difference

ZhengHai · 04-23-2012, 08:38 PM

I have an XI and I was wondering if theres any effect over a half inch from front and rear wheels to an inch?

I know my tires will be 235/35 and 265/30.

Will it be better to have 8 inch in the front and 9 in the rear? Or 8 1/2 in the front and 9 in the rear wont really matter??

Thanks,

-Max

bmw325i · 04-23-2012, 10:52 PM

It's up to you. As long as the tires are within 3% diameter since you have an xi. The sizes you listed are fine.

remmib · 04-24-2012, 11:30 AM

If you can choose, get 1 inch difference with those tires.

Pcemkr · 04-24-2012, 11:55 AM

It doesn't matter. I have 225/265 on 9.5"/11" on my xDrive.

wdeerfield · 04-24-2012, 12:22 PM

Quote:

Originally Posted by bmw325i

It's up to you. As long as the tires are within 3% diameter since you have an xi. The sizes you listed are fine.

i think you want to keep it lower than that..

tomtom11 · 04-24-2012, 12:31 PM

8.5 front and 9.5 rear

Pcemkr · 04-24-2012, 01:01 PM

Quote:

Originally Posted by wdeerfield

i think you want to keep it lower than that..

It would probably not be a problem up to 3%, but you want it 1% or less to be safe.

ZhengHai · 04-24-2012, 08:50 PM

Quote:

Originally Posted by bmw325i

It's up to you. As long as the tires are within 3% diameter since you have an xi. The sizes you listed are fine.

Thanks. But just to be safe I think I'm going to keep it under 1%.

Quote:

Originally Posted by remmib

If you can choose, get 1 inch difference with those tires.

Thanks. That's kind of what I had in mind.

Quote:

Originally Posted by Pcemkr

It doesn't matter. I have 225/265 on 9.5"/11" on my xDrive.

Geeze! I think thats a little too much for me. Theres a lot to think about. Rime size, width, offset.. etc.

edirtaynine · 04-24-2012, 09:32 PM

although both width and diameter matter, the diameter difference is more "important"

ZhengHai · 04-24-2012, 10:49 PM

Quote:

Originally Posted by edirtaynine

although both width and diameter matter, the diameter difference is more "important"

Thank you! I want to make sure everything is "perfect" before buying the wrong sizes.

HighlandPete · 04-25-2012, 05:44 AM

Don't know how you guys find the use of different tires on the X series models, but here in the UK the E83 X3 xDrive has been giving transfer box issues when users move from OEM tires. They are very sensitive to tire sizing.

Wonder how the E84 X1 will fare?

HighlandPete

Pcemkr · 04-25-2012, 08:26 AM

Quote:

Originally Posted by ZhengHai

Geeze! I think thats a little too much for me. Theres a lot to think about. Rime size, width, offset.. etc.

It's not a matter of how it "feels" right or wrong to you. It's science. I don't care if someone thinks it won't work, because well.. it does.

ZhengHai · 04-25-2012, 11:33 PM

Quote:

Originally Posted by Pcemkr

It's not a matter of how it "feels" right or wrong to you. It's science. I don't care if someone thinks it won't work, because well.. it does.

Im not questioning your knowledge on this subject. I was just saying there a lot to think about when it comes to picking wheels like width, offset, tires and etc in general. Thats why im asking these questions. I didnt know i could run 225 with 265 on an 1 1/2 difference in wheel width. I was just trying to stay in the safe zone.

Pcemkr · 04-26-2012, 07:42 AM

Yup, it's not a problem.

04-23-2012, 08:38 PM	#1
ZhengHai Captain 240 Rep 883 Posts Drives: E90 Join Date: Sep 2010 Location: AV, California iTrader: (2)	Half inch difference OR Inch difference I have an XI and I was wondering if theres any effect over a half inch from front and rear wheels to an inch? I know my tires will be 235/35 and 265/30. Will it be better to have 8 inch in the front and 9 in the rear? Or 8 1/2 in the front and 9 in the rear wont really matter?? Thanks, -Max __________________
	Appreciate 1 Tweet Quote

04-23-2012, 10:52 PM	#2
bmw325i Major General 223 Rep 5,120 Posts Drives: 2006 BMW 325i Join Date: Oct 2010 Location: United States iTrader: (8)	It's up to you. As long as the tires are within 3% diameter since you have an xi. The sizes you listed are fine.
	Appreciate 0 Quote

04-24-2012, 11:30 AM	#3
remmib General 1569 Rep 29,202 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	If you can choose, get 1 inch difference with those tires. __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
	Appreciate 0 Quote

04-24-2012, 11:55 AM	#4
Pcemkr Pro Hater 49 Rep 1,717 Posts Drives: Low and slow Join Date: Apr 2011 Location: DC iTrader: (1)	It doesn't matter. I have 225/265 on 9.5"/11" on my xDrive. __________________ Username is now PSUSMU
	Appreciate 0 Quote

04-24-2012, 12:31 PM	#6
tomtom11 Captain 84 Rep 703 Posts Drives: 335i Join Date: Jan 2011 Location: Earth iTrader: (1)	8.5 front and 9.5 rear Last edited by tomtom11; 05-09-2012 at 05:02 PM..
	Appreciate 0 Quote

04-24-2012, 09:32 PM	#9
edirtaynine Major General 81 Rep 6,092 Posts Drives: e92 Join Date: Mar 2011 Location: SoCal iTrader: (0)	although both width and diameter matter, the diameter difference is more "important"
	Appreciate 0 Quote

04-25-2012, 05:44 AM	#11
HighlandPete Lieutenant General 6659 Rep 15,858 Posts Drives: BMW F11 535i Touring Join Date: Mar 2007 Location: Scotland, Highland Region iTrader: (0)	Don't know how you guys find the use of different tires on the X series models, but here in the UK the E83 X3 xDrive has been giving transfer box issues when users move from OEM tires. They are very sensitive to tire sizing. Wonder how the E84 X1 will fare? HighlandPete
	Appreciate 0 Quote

04-26-2012, 07:42 AM	#14
Pcemkr Pro Hater 49 Rep 1,717 Posts Drives: Low and slow Join Date: Apr 2011 Location: DC iTrader: (1)	Yup, it's not a problem. __________________ Username is now PSUSMU
	Appreciate 0 Quote