Tires

M3prsiv · 04-20-2010, 04:25 PM

I have done the search and everything is for 19's only. What is the widest tire on the stock OEM 18's I can go for the front and rear? Are the factory sizes the best? I figure BMW did numerous test for the sizes they pick. I though wouldn't mind going wider for aesthetic and performance purposes if it doesn't have any negative traits.

255/40-18 -front
275/35/18 rears

Thats what I am thinking. Does it sound right? Thanks for the help.

FusionM · 04-20-2010, 04:56 PM

Based on the official wheel width specs with the only difference between a 19 and 18 is the diameter, you should be able to use 255/275 just fine.

18" style 260
Front 8,5J ET:29
Rear 9,5J ET:23

19" Style 220
Front 8,5J ET:29
Rear 9,5J ET:23

OMID INC · 04-20-2010, 04:57 PM

exactly.. i was thinking of doing the same thing with a set of OE 18's

255 front and 275 rear.

you can see the PS2 in 245 and 265 are a little rounded on the sidewalls so you could prob fit a bigger tire.

JJM335 · 04-20-2010, 05:45 PM

I can confirm that 255/35 and 275/35 fit. I am running those sizes in Toyo R888's for track and autocross.

M3prsiv · 04-20-2010, 06:15 PM

Thanks so much guys, exactly the info I needed. 255/35 + 275/35 it is.

Any change in ride quality?

04-20-2010, 04:25 PM	#1
M3prsiv RACER X 75 Rep 310 Posts Drives: 16 M3 Join Date: May 2008 Location: College Station, Texas iTrader: (4)	Tires I have done the search and everything is for 19's only. What is the widest tire on the stock OEM 18's I can go for the front and rear? Are the factory sizes the best? I figure BMW did numerous test for the sizes they pick. I though wouldn't mind going wider for aesthetic and performance purposes if it doesn't have any negative traits. 255/40-18 -front 275/35/18 rears Thats what I am thinking. Does it sound right? Thanks for the help. __________________ 01 M3 Coupe 6spd - sold 08 M3 Coupe 6spd - sold 01 Porsche 911 Turbo EVO GT660 - sold 16 M3 Sedan 6spd CCB
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04-20-2010, 04:56 PM	#2
FusionM Private First Class 20 Rep 179 Posts Drives: . Join Date: Feb 2008 Location: . iTrader: (0)	Based on the official wheel width specs with the only difference between a 19 and 18 is the diameter, you should be able to use 255/275 just fine. 18" style 260 Front 8,5J ET:29 Rear 9,5J ET:23 19" Style 220 Front 8,5J ET:29 Rear 9,5J ET:23
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04-20-2010, 04:57 PM	#3
OMID INC Lieutenant Colonel 92 Rep 1,562 Posts Drives: E70 X5 Join Date: Feb 2010 Location: Chicago iTrader: (6)	exactly.. i was thinking of doing the same thing with a set of OE 18's 255 front and 275 rear. you can see the PS2 in 245 and 265 are a little rounded on the sidewalls so you could prob fit a bigger tire.
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04-20-2010, 05:45 PM	#4
JJM335 Second Lieutenant 7 Rep 229 Posts Drives: 2008 E92 M3 Join Date: May 2007 Location: GA iTrader: (0) Garage List 2008 E92 M3 [0.00]	I can confirm that 255/35 and 275/35 fit. I am running those sizes in Toyo R888's for track and autocross.
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04-20-2010, 06:15 PM	#5
M3prsiv RACER X 75 Rep 310 Posts Drives: 16 M3 Join Date: May 2008 Location: College Station, Texas iTrader: (4)	Thanks so much guys, exactly the info I needed. 255/35 + 275/35 it is. Any change in ride quality? __________________ 01 M3 Coupe 6spd - sold 08 M3 Coupe 6spd - sold 01 Porsche 911 Turbo EVO GT660 - sold 16 M3 Sedan 6spd CCB
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