Replace your stock bumper with an all aluminum Mountain Armor bumper. Fits 2011-2015 Pro RMK/Assault with 163" track. Our bumper helps strengthen the tunnel as well as give you more hand room for when you get stuck in the deep powder. Includes convenient holes for bungee cords to allow you to easily strap bags or other accessories to your tunnel. Includes mounting hardware. Some drilling of tunnel required to add additional mounting holes.