Here are a list of all the factory option tires and their overall tire height.
Sport 225/75-16 = 29.2"
Sport/Limited 235/65-17 = 29"
Limited 235/60-18 = 29.1"
JET 245/50-20 = 29.6"
I think Boblemoche has the biggest tires on a KK 285/75-16 = 32.8"
If you are curious on how to come up with this number follow this equation
Example: 225/75-16
Take the Width (225) and multiple it by the height (.75) = 168.75 This number represents the sidewall height. Remember you have technically have 2 sidewalls to measure (top and bottom)
Convert the rim to mm 16 x 25.2 = 406.4
168.75 + 168.75 + 406.4 = 743.9
Convert 743.9 to inches 743.9 / 25.4 = 29.2" (Overall diameter)

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Out - 2008 Jeep Liberty Limited 4x4
In - 2011 Jeep Liberty Carbon Edition
http://www.cardomain.com/ride/3972889/2 ... ed-edition