A golf club shaft system and golf club shaft possessing unique flexural and torsional rigidity profiles, while providing significant adjustability to fine tune the shaft to a particular golf swing.

Provided is an adjustable putter grip. The adjustable putter grip includes a first grip member coupled adjacent a first end of a putter shaft. A putter head is coupled to a second end of the putter shaft. The adjustable putter grip also includes a second grip member coupled to the putter shaft between the first grip member and the second end of the putter shaft. The first grip member and the second grip member are rotatable with respect to each other to adjust grip position, the second grip member is rotatable with respect to the first grip member to adjust grip position, or the first grip member is rotatable with respect to the second grip member to adjust grip position. A method of forming a custom grip or custom fitting of a golfer is also disclosed.

Provided is an adjustable putter grip. The adjustable putter grip includes a first grip member coupled adjacent a first end of a putter shaft. A putter head is coupled to a second end of the putter shaft. The adjustable putter grip also includes a second grip member coupled to the putter shaft between the first grip member and the second end of the putter shaft. The first grip member and the second grip member are rotatable with respect to each other to adjust grip position, the second grip member is rotatable with respect to the first grip member to adjust grip position, or the first grip member is rotatable with respect to the second grip member to adjust grip position. A method of forming a custom grip or custom fitting of a golfer is also disclosed.

A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics.

A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics.

A golf club shaft system and golf club shaft possessing unique flexural and torsional rigidity profiles, while providing significant adjustability to fine tune the shaft to a particular golf swing.

A golf club shaft system and golf club shaft possessing unique flexural and torsional rigidity profiles, while providing significant adjustability to fine tune the shaft to a particular golf swing.

An improved racquet handle, such as for a tennis or racquetball racquet, comprised of a flex control device that enables a user to adjust the flexibility of the racquet handle. The increased flexibility of the racquet handle enables a user to impart greater force on a ball, such as a tennis ball, and also dampens or reduces the amount of vibration and/or shock otherwise imparted to the racquet user when the racquet strikes the ball. The flex control device of the present invention is comprised of a fixed insert portion and an interchangeable, removable insert that enables a user to control the amount of the flexibility of the racquet.

A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics including improved stability.

A multi-material golf shaft having a butt portion joined to a tip portion and possessing unique relationships, including rigidity relationships, which provide beneficial performance characteristics including improved stability.