| Message | the question is, what are you really looking for? Yes you want mileage out of them, which can be possible with over 100 plus tires. I think you should head to a tire shop, (ie: costco, wallmart, discount tire, head to tirerack.com) and figure out what you want. Speed rating is just telling you how the tire is constructed, and what speed its 'safe to', in general terms. 
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