Golfl club heads with cavities and inserts and related methods

A golf club head comprising:

• a body comprising:
• a strikeface at a front of the golf club head;
• a backface opposite the strikeface;
• a heel region;
• a toe region opposite the heel region;
• a sole;
• a rear portion at a rear of the golf club head;
• and
• a cavity located between the backface and the rear portion comprising:
• a face side wall comprising a portion of the backface;
• a rear side wall opposite the face side wall;
• a bottom wall between the face side wall and the rear side wall;
• a post extending from the bottom wall into a portion of the cavity;
• and
• a width measured from the face side wall to the rear side wall;
• and
• an insert received within the cavity;
• wherein:
• the insert comprises:
• a first component comprising a back surface configured to be adjacent to the rear side wall of the golf club head, a front surface opposite the back surface, a bottom surface, a top surface opposite the bottom surface, a toe-region side, a heel region side opposite the toe-region side, and an elastically deformable material;
• and
• a retainer configured to be received within the first component of the insert comprising a top surface, a bottom surface and a plastically deformable material.

A golf club head comprising:

• a body comprising:
• a strikeface at a front of the golf club head;
• a backface opposite the strikeface;
• a heel region;
• a toe region opposite the heel region;
• a sole;
• a rear portion at a rear of the golf club head;
• and
• a cavity located between the backface and the rear portion comprising:
• a face side wall comprising a portion of the backface;
• a rear side wall opposite the face side wall comprising a recess extending from the heel region to the toe region;
• a bottom wall between the face side wall and the rear side wall;
• and
• a width measured from the face side wall to the rear side wall;
• and
• an insert received within the cavity;
• wherein:
• the insert comprises:
• a first component comprising a back surface configured to be adjacent to the rear side wall of the golf club head, a front surface opposite the back surface, a bottom surface, a top surface opposite the bottom surface, a toe-region side, a heel region side opposite the toe-region side, and an elastically deformable material;
• and
• a retainer configured to be received within the first component of the insert comprising a top surface, a bottom surface and a plastically deformable material.