Abstract: Embodiments of a stick weight assembly for use within a shaft of a golf club, wherein the shaft includes a shaft inner surface defining a shaft bore, the stick weight assembly comprising: a stick weight comprising: a rod sized for insertion into the shaft bore, the rod having a top end and a bottom end, wherein the top end defines an outer top end geometry; a disk coupled to the rod bottom end and sized to abut a tip end of the shaft; and a stick weight support comprising: a first end; a second end; a first portion having an outer surface defining a dome wherein the dome is sized for insertion into the shaft; a second portion coupled to the first portion comprises an outer surface and a plurality of ridges projecting outward from the outer surface and sized to engage the shaft inner surface; wherein the stick weight support defines a cavity extending from the second end towards the first end, wherein the cavity is configured to receive the top end of the rod.

Abstract: Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, a top rail and an inflection point. The inflection point provides increase bending of the strikeface thereby providing performance enhancement over clubs without an inflection point.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Abstract: A method of forming a golf club head assembly includes aligning a faceplate with a recess of a club head; welding the faceplate to the club head; then, after welding the faceplate, heating the club head and the faceplate to at least a solvus temperature of the faceplate for a predetermined amount of time; and then, after heating the club head and the faceplate, allowing the club head and the faceplate to air cool.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Abstract: A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

Abstract: The sole cavity ports described herein can have varying thicknesses across the cavity port lengths. In some embodiments, the golf club heads described herein can have a weight insertable into the sole port, wherein the weight can comprise a variable density. Other examples and related methods are also disclosed herein.

Abstract: Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, a top rail and an inflection point. The inflection point provides increase bending of the strikeface thereby providing performance enhancement over clubs without an inflection point.

Abstract: Embodiments of golf coupling mechanisms for joining golf club heads and shafts are described herein. The golf coupling mechanism allows for adjustment of a club head loft angle, a club head lie angle, and a golf club shaft length while utilizing one club head and one shaft. In a fully extended configuration, the golf coupling mechanism includes a shaft sleeve, a removable spacer, and a removable extender, wherein a fastening assembly secures the golf coupling mechanism to the golf club head. In a contracted configuration, the golf coupling mechanism includes the shaft sleeve. The golf coupling mechanism further includes a shaft cap to soften the interaction between the shaft and the golf coupling mechanism. The golf coupling mechanism further comprises one or more arcuate coupler sets to frictionally lock the shaft relative to the golf club head.

Abstract: Embodiments of golf coupling mechanisms for joining golf club heads and shafts are described herein. The golf coupling mechanism allows for adjustment of a club head loft angle, a club head lie angle, and a golf club shaft length while utilizing one club head and one shaft. In a fully extended configuration, the golf coupling mechanism includes a shaft sleeve, a removable spacer, and a removable extender, wherein a fastening assembly secures the golf coupling mechanism to the golf club head. In a contracted configuration, the golf coupling mechanism includes the shaft sleeve. The golf coupling mechanism further includes a shaft cap to soften the interaction between the shaft and the golf coupling mechanism. The golf coupling mechanism further comprises one or more arcuate coupler sets to frictionally lock the shaft relative to the golf club head.

Abstract: Embodiments of golf coupling mechanisms for joining golf club heads and shafts are described herein. The golf coupling mechanism allows for adjustment of a club head loft angle, a club head lie angle, and a golf club shaft length while utilizing one club head and one shaft. In a fully extended configuration, the golf coupling mechanism includes a shaft sleeve, a removable spacer, and a removable extender, wherein a fastening assembly secures the golf coupling mechanism to the golf club head. In a contracted configuration, the golf coupling mechanism includes the shaft sleeve. The golf coupling mechanism further includes a shaft cap to soften the interaction between the shaft and the golf coupling mechanism. The golf coupling mechanism further comprises one or more arcuate coupler sets to frictionally lock the shaft relative to the golf club head.

Abstract: Described herein is a golf club head comprising reinforcement members. The reinforcement members span across a rear cavity to connect to at least two portions of the perimeter of the club head and do not touch the rear surface of the strike face. The reinforcement members can be integrally casted or separately formed and attached to the club head. The reinforcement members improve the sound and vibrational response of the club head.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Abstract: Some embodiments include hollow body club heads having reinforced club head faces. In one example, the club face comprises a reinforcement element such as a looped rib positioned on a rear surface of the club face to provide reinforcement. The club head defines a closed interior cavity, where the reinforcement is located within the closed interior cavity. The hollow body club head further comprises a rear including a plurality of walls to allow the club head to easily bend during a golf ball impact. The combination of the hollow body design and the reinforcement element reinforces the club head while permitting the club face to bend. Other embodiments of related club heads and methods are also disclosed.

Abstract: Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, a top rail and an inflection point. The inflection point provides increase bending of the strikeface thereby providing performance enhancement over clubs without an inflection point.

Abstract: A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

Abstract: Described herein are embodiments of cavity back irons with inserts. In some embodiments, the insert has a plurality of voids. In some embodiments, the voids can have approximately the same size. In other embodiments, the voids can vary in size to create a variable density. The cavity back iron can include an undercut, a lip, or another rear structure. The insert can fill the back cavity and a majority of an undercut, lip, or maintaining feature. In some embodiments, the insert is made up of multiple pieces. In many embodiments, the insert can be press-fit into the cavity. Other embodiments of cavity back irons with inserts are described herein.

Abstract: Embodiments of a golf club head comprising a weight system are described herein. In some embodiments, the golf club head comprises a head body with a multi-density weight in combination with a removable weight. The multi-density weight and the removable weight act in tandem for preferred swingweighting. Other examples and related methods are also described herein.