A rotatable sports-board binding adapter mounts to a sports board and allows a user to adjust an angle of one foot relative to the sports board. The adapter includes a base plate forming a series of lock holes and at least one pocket that accommodates a low-friction puck. A rotatable plate connects to the base plate and includes a locking mechanism that can engage with any one of the lock holes to prevent rotation of the rotatable plate. When the low-friction puck is inserted into the pocket, the puck is translatable so that it contacts the rotatable plate, advantageously preventing the rotatable plate and base plate from directly contacting each other while providing a low-friction surface that enables the rotatable plate to easily rotate with respect to the base plate. As the low-friction puck wears, it may be additionally translated, or replaced with a new puck.