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).