The present disclosure provides advantageous skateboard assemblies (e.g., advantageous skateboard guard assemblies). More particularly, the present disclosure provides advantageous guard/noseguard assemblies for skateboards and related methods of use. The present disclosure provides for mountable, interchangeable and/or removable guard/noseguard assemblies for skateboards. The skateboard guard assemblies typically include a contoured or shaped top surface, each contoured/shaped top surface configured and dimensioned to provide the user/rider at least one advantageous surface that a user/rider can position a foot onto/over during use (e.g., a surface that a user/rider can utilize to place or position a foot directly onto/above, with the bottom side of the user's foot contacting the top surface of the guard assembly). Exemplary guard/noseguard assemblies of the present disclosure also provide protection purposes for the skateboard deck, and/or modify the bottom surface angle of the board kicktail to change the point of contact (e.g., during an Ollie or the like).