Quad Bike Trail King is one of the best 3d 4x4 racing game online. Speed up your selected Quad Bike and become Trail King of the game. Quad Bike Trail King and Quad Bike Trail King 3d 2 it's now live for free on vitalitygames.com. Race your quad bike around the track in this awesome 3d racing game! And prove you got what it takes on this free online bike game to be the best atv driver in the game.