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Wider tires on 2011 GT500 to compete with the upcoming ZL1

Discussion in '2nd Generation Shelby Mustangs' started by quorum, Feb 14, 2011.

  1. Feb 14, 2011 #1
    quorum

    quorum Active Member

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    So the new ZL1 comes on 305 rears, whilst our 2011 GT500s come with 285s plus a reputation for not being able to hook up.

    I've done some research over the net, and people have successfully installed 305s on 10" wide wheels (I have the SVT package). In fact many wheels recommend 9-10" for a 305.

    The question now is: which is a good street tire that's 305/XR20 (whatever the X is supposed to be to be same diameter as the stock wheel)? And what does "X" equal?

    Thanks!!
     
    quorum, Feb 14, 2011
    quorum, Feb 14, 2011
    #1
  2. Feb 19, 2011 #2
    67GT500#2100

    67GT500#2100 Shelby Forums Pit Crew

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    My wife has 315-35-20's out back on her 06 Mustang GT. They look great and don't rub. They are mounted on 20x10.5 rims. X is the speed rating of the tire, though I have never heard of and X speed rating. The new best speed rating is Y which is 186 mph.


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    67GT500#2100, Feb 19, 2011
    67GT500#2100, Feb 19, 2011
    #2
  3. Feb 19, 2011 #3
    zrayr

    zrayr Well-Known Member

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    zrayr, Feb 19, 2011
    zrayr, Feb 19, 2011
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