The two mix to create as dry an area as potential between tire and road floor. Other letters apply to trailers and business vehicles but aren’t found on car tires. BFGoodrich’s Trail-Terrain tires are appropriate for the highway you could check here and something that lies past. These tires combine the sturdiness required for each paved and unpaved roads. The locking sipes give you increased traction and stability while providing a longer tread life.