If you think your current tires work great, then you really need a set of mud terrains. There are basically 2 different grades of "mud terrain". Those that are designed mostly to be a more aggressive allterrain (meaning they still work good on pavement), and those that are balls-out mud tires (meaning, well, you know). go with the first ones if they are your only tires, go with the second if you have street tires too.