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    Tire test by Car & Driver Magazine

    if you guys are looking in to those tires, i would recommend you consider the bfgoodrich kdw-2, or 'new tread'. the performance in the wet as well as dry is quite impressive, and the tread design looks amazing, IMHO
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    Ultra High Performance Tires(UHP) and Fuel Economy losses?

    That is also partially due to your tire width being reduced. if you calculated it, the sidewall difference is 6.5mm. that isn't that much of a difference, but that is just diameter, i'm not sure exactly how much of a circumference difference that would account for. but i think when you are...
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    Ultra High Performance Tires(UHP) and Fuel Economy losses?

    I think you are also getting worse mpg because of the reduced diameter of the wheel. you went to wider tires, but also with a lower profile. if you calculate out the actual diameter of the whole wheel, you will find that it is shorter now. for short trips, this will lead to a higher mpg, but for...
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