Rotatable binding for snowboard

A binding for a snowboard, said binding comprising:

• a base plate to be fixedly attached to a top surface of the snowboard;
• said base plate having:
• a top including an indexing platform including a multiplicity of bores arranged in circular fashion along a circular arc about a central axis;
• a binding plate rotatably mounted on said base plate, so as to rotate unobstructedly 360.degree. about an axis of rotation coincident with the central axis of the circular arc of the bores, including:
• a bottom;
• a top
• a foot binding on said binding plate top;
• a locking assembly including:
• a pin mounted on the top of said binding plate selectively moveable from a raised position clear of the bottom of the binding plate and not restricting rotation of said binding plate relative to said base plate, to a lowered position extending below the bottom of said binding plate engaging a said bore such that said binding plate may not rotate relative to said base plate;
• said pin positioned on said base plate such that said pin in registrable in any one of said multiplicity of bores;
• and
• mounting means for mounting said binding plate to said base plate so as to permit it to rotate relative thereto;
• and
• said binding plate having a circular aperture with its center coinciding with the axis of rotation of the binding plate, an annular portion of the retainer disc to fit peripherally, when in position, into the binding plate aperture and act as a guide to the binding plate during its rotation and a peripheral portion of the retainer disc seated on a portion of the top of the binding plate to prevent disengagement of a binding plate from the base plate.