A flexible grip for implements to be manually swung with speed and force, particularly golf clubs is disclosed. The grip is formed of elastomeric material die cut into patterns from uncured sheet stock. Discrete non-woven fibers of material having desired moisture absorbency are dispensed in random orientation onto the uncured sheet stock and embedded by rolling into the sheet stock. The pattern sheet stock, with embedded fibers is wrapped onto a mandrel which is inserted into a pre-mold, compressed thereon, removed and transferred to a compression mold, and cured. The mandrel is removed from the mold and the cured grip removed from the mandrel and installed onto the implement grip.

Embodiments of adjustable length golf clubs and methods of manufacturing adjustable length golf clubs are generally described herein. Other embodiments may be described and claimed.

Embodiments of adjustable length golf clubs and methods of manufacturing adjustable length golf clubs are generally described herein. Other embodiments may be described and claimed.

An improved golf shaft (100,200) extending from the grip at the butt end of shaft till the neck at the tip end of the shaft, whereto said shaft is having grooves (202, 302, 402, 502, 602, 702) on the outer surface of the golf shaft winding around in a constant pitch on the circumference of the golf shaft forming a thread so that the grooves allow air to be distributed around the circumference of the shaft to help reduce drag forces on the shaft.

An improved golf shaft (100,200) extending from the grip at the butt end of shaft till the neck at the tip end of the shaft, whereto said shaft is having grooves (202, 302, 402, 502, 602, 702) on the outer surface of the golf shaft winding around in a constant pitch on the circumference of the golf shaft forming a thread so that the grooves allow air to be distributed around the circumference of the shaft to help reduce drag forces on the shaft.

A golf club length adjustment device, comprising a first member affixed to a main shaft, the main shaft configured to couple to a golf club head, a second member slideably coupled to the first member, the second member adapted to couple to a golf club grip, wherein the first member is configured to slide along a club axis relative to the second member to change the length of the golf club, a backout prevention unit configured to limit the second member from uncoupling from the first member after the golf club length adjustment device has been assembled, a decoupling tool configured to be inserted through an access hole formed in a proximal end of the grip, the decoupling tool configured to engage and deflect the backout prevention unit, disengaging the backout prevention unit from the second member, allowing for disassembly of the second member from the first member.

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

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

A golf training aid 20 that provides to the user unmistakable positive feedback how to use the hands, wrists and forearms in the golf swing to affect what has been popularly called Ben Hogan's Secret Move, particularly during the transition of the golf swing. Golf training aid 20 also provides the golfer unmistakable feedback as to whether they have executed the correct movement that Hogan explained in his 1955 Life magazine article.

A shaft 6 includes a tip end Tp and a butt end Bt. If a shaft length is defined as Ls, a distance between the butt end Bt of the shaft and a center of gravity G of the shaft is defined as Lg, and a ratio of the distance Lg to the shaft length Ls is defined as a ratio of the center of gravity of the shaft, then the ratio of the center of gravity of the shaft is equal to or less than 47%. The shaft length Ls is equal to or less than 991 mm. If a forward flex is defined as F1 (mm) and a backward flex is defined as F2 (mm), a flex point ratio C1 of the shaft calculated by the following formula (1) is equal to or less than 39%:
C1=[F2/(F1+F2)]100](1).