tire fitment issues - Ford Mustang Forum
 
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post #1 of 5 (permalink) Old 08-24-2010 Thread Starter
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tire fitment issues

I have the factory bullit wheels 18x8.5 with 235/50/18. What is the largest tire that will safely go on this wheel? I want a staggered look. Also how will adding bigger tires affect fuel economy and cornering, Im looking at a set 18x9 255/45zr18 front and 18x10 285/40zr18 on back.

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post #2 of 5 (permalink) Old 08-25-2010
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Originally Posted by mswaff View Post
I have the factory bullit wheels 18x8.5 with 235/50/18. What is the largest tire that will safely go on this wheel? I want a staggered look. Also how will adding bigger tires affect fuel economy and cornering, Im looking at a set 18x9 255/45zr18 front and 18x10 285/40zr18 on back.
Yep, I would recommend exactly the staggered rim and tires sizes that you are thinking here .... They are great on our car !! However, with the 40's on the rear, you are now going to notice a lot more wheel gap then before and it will bother you, unless you are lowered.


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post #3 of 5 (permalink) Old 08-26-2010
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Originally Posted by GT E UPP View Post
Yep, I would recommend exactly the staggered rim and tires sizes that you are thinking here .... They are great on our car !! However, with the 40's on the rear, you are now going to notice a lot more wheel gap then before and it will bother you, unless you are lowered.
Agreed... I Have 50s on the back and it looks pretty meaty try to look for a 45 at least or lower soon because youll want to unless you want to put a cargo compartment in your wheel well..... I wonder if that would work!

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post #4 of 5 (permalink) Old 08-26-2010
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Agreed... I Have 50s on the back and it looks pretty meaty try to look for a 45 at least or lower soon because youll want to unless you want to put a cargo compartment in your wheel well..... I wonder if that would work!
Seriously???? The OEM tire has an overall diameter of 27.2" The specs the OP has listed puts him roughly at 26.98" depending on the manufacturer.

You cant recommend an aspect ratio of 50 without knowing the width. No offense but I saw your tire/wheel set up before I even read this thread and my first impression was who put truck tires on their mustang?

To the OP, just remember by increasing your overall diameter you are decreasing your gearing...285/40s worked perfect for me.
post #5 of 5 (permalink) Old 08-27-2010
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I didn't recommend getting 50 I was just saying that he might either want to get a bigger ratio or lower. I am never going to lower my car its not that kind of mustang so yes I am going to put truck tires on that ***** cause I can!

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