265/36 r18 on 8,5J rim ???

enricob · 03-19-2011, 11:20 AM

Does a 265/35 R18 tyre fit in an 8,5J rim? Have somebody any pics?

wwjd15 · 03-19-2011, 12:04 PM

first of all, you won't find any 36 spec tire, I guess it's a typo. 265 is too wide on 8.5 rim, it will look like a doughnut. If it's just for street driving, you should be fine.

JCtx · 03-19-2011, 12:50 PM

255 is the limit on an 8.5" wheel. You can fit a 265, but you shouldn't, especially if you plan to travel at high speeds. Your call.

LiM3y · 03-20-2011, 12:26 AM

I have 265/35/18 up front, 285/35/R18 rear Conti DW tires on for DD

enricob · 03-20-2011, 03:09 AM

thanks for your answers

rzm3 · 03-20-2011, 03:32 AM

Go to TireRack and take a look at the specifications of each brand/model of tire. There is a recommended rim width column. When you mount too wide of a tire on to a narrow rim (even if it fits), you lose the benefits of having a wider tire... and it becomes a useless exercise unless you have other reasons to choose 265.

LiM3y · 03-20-2011, 07:48 AM

Good points - I messed up when ordering. I put them on anyway. Daily driving - I haven't had any issues. I switch them out for track days, so they only see highway speeds.

enricob · 03-20-2011, 08:36 AM

Quote:

Originally Posted by rldzhao

Go to TireRack and take a look at the specifications of each brand/model of tire. There is a recommended rim width column. When you mount too wide of a tire on to a narrow rim (even if it fits), you lose the benefits of having a wider tire... and it becomes a useless exercise unless you have other reasons to choose 265.

thanks ridzhao

Richbot · 03-20-2011, 10:15 AM

The recommended width range isn't usually based on much empirical data. Those ranges are fairly well standard within a manufacturer's product line for all kinds of different tires. Width x = rim width range Y, regardless of construction, compound, shoulder profile, etc. See, for instance, Kumho's product line. Their recommended rim width range is exactly the same for the V710 as it is for their cheapest all-season. The V710 runs around 1/4" wider than their all-seasons, even though the width measurements on tirerack.com's website may be the same, when they're mounted on the same wheel, they're wider.

The only way to know for sure if a wider tire is better for your needs is to try them and find out. There's no substitute for testing. A blanket statement that it's pointless to go outside of the recommendation is just misleading.

03-19-2011, 11:20 AM	#1
enricob First Lieutenant 21 Rep 339 Posts Drives: Bmw M3 e92 Join Date: Oct 2005 Location: Italy iTrader: (0)	265/36 r18 on 8,5J rim ??? Does a 265/35 R18 tyre fit in an 8,5J rim? Have somebody any pics?
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03-19-2011, 12:04 PM	#2
wwjd15 Banned 89 Rep 1,315 Posts Drives: 11 E92 M3 MR Join Date: May 2009 Location: Orange County iTrader: (6)	first of all, you won't find any 36 spec tire, I guess it's a typo. 265 is too wide on 8.5 rim, it will look like a doughnut. If it's just for street driving, you should be fine.
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03-19-2011, 12:50 PM	#3
JCtx Major General 258 Rep 5,012 Posts Drives: No BMW yet Join Date: May 2008 Location: El Paso TX iTrader: (0)	255 is the limit on an 8.5" wheel. You can fit a 265, but you shouldn't, especially if you plan to travel at high speeds. Your call. Last edited by JCtx; 03-20-2011 at 02:22 AM..
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03-20-2011, 12:26 AM	#4
LiM3y Major 70 Rep 1,339 Posts Drives: 2008 E90 M3 Join Date: Jun 2009 Location: CT iTrader: (5)	Here you go... I have 265/35/18 up front, 285/35/R18 rear Conti DW tires on for DD Attached Images
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03-20-2011, 03:09 AM	#5
enricob First Lieutenant 21 Rep 339 Posts Drives: Bmw M3 e92 Join Date: Oct 2005 Location: Italy iTrader: (0)	thanks for your answers
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03-20-2011, 03:32 AM	#6
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	Go to TireRack and take a look at the specifications of each brand/model of tire. There is a recommended rim width column. When you mount too wide of a tire on to a narrow rim (even if it fits), you lose the benefits of having a wider tire... and it becomes a useless exercise unless you have other reasons to choose 265.
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03-20-2011, 07:48 AM	#7
LiM3y Major 70 Rep 1,339 Posts Drives: 2008 E90 M3 Join Date: Jun 2009 Location: CT iTrader: (5)	Good points - I messed up when ordering. I put them on anyway. Daily driving - I haven't had any issues. I switch them out for track days, so they only see highway speeds.
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03-20-2011, 10:15 AM	#9
Richbot Major General 2759 Rep 5,484 Posts Drives: Jerez Black E90 Join Date: Sep 2007 Location: STL iTrader: (5)	The recommended width range isn't usually based on much empirical data. Those ranges are fairly well standard within a manufacturer's product line for all kinds of different tires. Width x = rim width range Y, regardless of construction, compound, shoulder profile, etc. See, for instance, Kumho's product line. Their recommended rim width range is exactly the same for the V710 as it is for their cheapest all-season. The V710 runs around 1/4" wider than their all-seasons, even though the width measurements on tirerack.com's website may be the same, when they're mounted on the same wheel, they're wider. The only way to know for sure if a wider tire is better for your needs is to try them and find out. There's no substitute for testing. A blanket statement that it's pointless to go outside of the recommendation is just misleading. __________________
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