Optimal tiresize for 8,5x20 and 10x20"

NiKeMaN · 01-06-2013, 05:18 AM

Hi everybody.

I'm thinking about stepping down from 21" to 20" this year on my F10.
But what tiresize do you recommend?

Wheels are 8,5x20" and 10x20"

I guess 245 front and 275 rear?
What about 275 / 35 rear?
and 245 / 40 front?

bconover · 01-06-2013, 10:25 AM

I would suggest not going larger than 245/35/20 on the front. I put M style rims off a 7 series that had GR run flats on it. They seemed fine but last week I noticed I had peeled the inner edge of the tire right down to the belting. I just put 245/3520s on and they are perfect.

NiKeMaN · 01-06-2013, 05:53 PM

245/35 front then. But what about rear?
275/40r18 i think my M-Sport wheels have?!

bconover · 01-07-2013, 06:27 AM

I put 275/3520 on the rear. You may be able to push it to 275/40/20. I had those on and didn't have any trouble. Everything I read on here sticks with the 35s

remmib · 01-07-2013, 12:23 PM

Quote:

Originally Posted by bconover

I put 275/3520 on the rear. You may be able to push it to 275/40/20. I had those on and didn't have any trouble. Everything I read on here sticks with the 35s

OEM 20" size are 245/35/20 + 275/30/20.

But on aftermarket 20", many go with 285/30/20 in the rear.

NiKeMaN · 01-08-2013, 11:44 AM

Quote:

Originally Posted by remmib

OEM 20" size are 245/35/20 + 275/30/20.

But on aftermarket 20", many go with 285/30/20 in the rear.

I had 295/25R21 last year and my fuel consumption went from 0.55 - 0.70.... So this year i'm trying to save some fuel. And 295/25R21 was to little gum for a nice ride so thats why i'm choosing 20 inch in stead of 21.

Am i getting to old? :S

TF_F10-520d · 01-08-2013, 12:04 PM

I have 255/295 Front/Rear on my car and my fuel cosumtion has not changed noticeable. Still has .55 average, but i have very little city driving.

20 inch wheels.

Hunter399 · 01-08-2013, 03:34 PM

Do the stock m6 wheels fit the 550?

01-06-2013, 05:18 AM	#1
NiKeMaN 5'er Drives: BMW 520dM-Sport 2012 Join Date: Dec 2007 Location: Sweden Posts: 433 iTrader: (1)	Optimal tiresize for 8,5x20 and 10x20" Hi everybody. I'm thinking about stepping down from 21" to 20" this year on my F10. But what tiresize do you recommend? Wheels are 8,5x20" and 10x20" I guess 245 front and 275 rear? What about 275 / 35 rear? and 245 / 40 front? __________________ ///Niklas Johansson 520dM Sedan 2012 Alpine White Ex BMW's: 325d Touring 2010 Crimson Red, 325dM Coupe 2008 Crimson Red, 330iM Cabriolet 2003 Black
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01-06-2013, 05:53 PM	#3
NiKeMaN 5'er Drives: BMW 520dM-Sport 2012 Join Date: Dec 2007 Location: Sweden Posts: 433 iTrader: (1)	245/35 front then. But what about rear? 275/40r18 i think my M-Sport wheels have?! __________________ ///Niklas Johansson 520dM Sedan 2012 Alpine White Ex BMW's: 325d Touring 2010 Crimson Red, 325dM Coupe 2008 Crimson Red, 330iM Cabriolet 2003 Black

01-08-2013, 12:04 PM	#7
TF_F10-520d Private Drives: 2011 BMW 520d Msport Join Date: Jul 2012 Location: Norway Posts: 78 iTrader: (0)	I have 255/295 Front/Rear on my car and my fuel cosumtion has not changed noticeable. Still has .55 average, but i have very little city driving. 20 inch wheels. __________________ BMW 520d M-sport - EDC - Sportsautomat - BBS CH-R \| 255/35-R20 \| 295/30-R20 \| Michelin Pilot Super Sport

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01-06-2013, 10:25 AM	#2
bconover New Member Drives: 528i Join Date: Aug 2011 Location: Jacksonville, FL Posts: 14 iTrader: (0)	I would suggest not going larger than 245/35/20 on the front. I put M style rims off a 7 series that had GR run flats on it. They seemed fine but last week I noticed I had peeled the inner edge of the tire right down to the belting. I just put 245/3520s on and they are perfect.

01-07-2013, 06:27 AM	#4
bconover New Member Drives: 528i Join Date: Aug 2011 Location: Jacksonville, FL Posts: 14 iTrader: (0)	I put 275/3520 on the rear. You may be able to push it to 275/40/20. I had those on and didn't have any trouble. Everything I read on here sticks with the 35s

01-08-2013, 03:34 PM	#8
Hunter399 Major General Drives: F30 335i Join Date: Apr 2005 Location: Houston, TX Posts: 7,751 iTrader: (30)	Do the stock m6 wheels fit the 550?