Tire speed ratings basically tell you how fast you can go before your tires turn into shrapnel. Your everyday grocery-getters can get away with, say, inexpensive S-rated tires that will hold together ...

Unless you’re picking up ZR-rated tires for your Lamborghini Murcielago, buying a new set of radials isn’t usually a great deal of fun. Much like running shoes, tires last longer than their models ...