Abstract: A golf club shaft assembly including a golf club shaft and a permanent shaft insert that is partially bonded, or is unbounded, to the golf club shaft.

Abstract: Apparatus for connecting a golf club shaft to a golf club head, including an adjustment tube, and golf clubs including the same.

Abstract: Apparatus for connecting a golf club shaft to a golf club head, including an adjustment tube, and golf clubs including the same.

Abstract: Insert assemblies for use with a golf club shaft including an insert and an insert lock, insert assembly systems, and apparatus for use with insert assemblies.

Abstract: An insert assembly for use with a golf club shaft including an insert and an insert lock.

Abstract: A golf club shaft including a fiber reinforced resin layers and a variety of metal fibers.

Abstract: Insert assemblies for use with a golf club shaft including an insert and an insert lock, insert assembly systems, and apparatus for use with insert assemblies.

Abstract: A golf accessory is provided that includes an insert for removably and interchangeably mounting within an interior of a golf club shaft for interchangeably altering a predetermined stiffness or bending moment of the club shaft.

Abstract: A shaft for use in a golf-club or other shaft-based instrument, including a base member and a metal layer, and a method of making the same.

Abstract: A golf club shaft including a fiber reinforced resin layers and a variety of metal fibers.

Abstract: A golf club shaft having a stiffness control section between the grip section and the main body section. The stiffness control section includes a first tapered portion and a second tapered portion. The circumference of the first tapered portion increases from the proximal end to the distal end thereof and the circumference of the second tapered portion decreases from the proximal end to the distal end thereof.

Abstract: A shaft for use in a golf-club or other shaft-based instrument, including a base member and a metal layer, and a method of making the same.

Abstract: A vibration damping device including an elastic main body portion and a plurality of damping members. Each of the damping members have at least a portion thereof within the elastic main body portion and at least one of the damping members is radially spaced from the longitudinal axis of the elastic main body portion.

Abstract: A golf club shaft having a main body section and a grip section associated with the proximal end of the main body section. The grip section includes a top hand portion, a bottom hand portion and a substantially cylindrical bottom thumb portion. A kick section is provided between the grip section and main body section.

Abstract: A golf club head including a main body portion having a groove formed therein and a striking assembly associated with the groove. The striking assembly includes a relatively hard front portion and a relatively soft rear portion. The striking assembly is mounted on the main body portion such that the front portion defines the ball striking surface.

Abstract: A golf club shaft including a tip section, a grip section, a main body section and a vibration control section. The vibration control section prevents first harmonic vibrations, second harmonic vibrations, third harmonic vibrations, and so on from be transmitted to the hands of the golfer after impact.

Abstract: A golf club shaft having a main body section and a grip section associated with the proximal end of the main body section. The grip section includes a top hand portion, a bottom hand portion and a substantially cylindrical bottom thumb portion. Alternatively, or in addition, a kick section may be provided between the grip section and main body section.

Abstract: A golf club shaft having a stiffness control section between the grip section and the main body section. The stiffness control section includes a first tapered portion and a second tapered portion. The circumference of the first tapered portion increases from the proximal end to the distal end thereof and the circumference of the second tapered portion decreases from the proximal end to the distal end thereof.

Abstract: A golf club shaft including a tip section, a grip section, and a main body section extending from the proximal end of the tip section to the distal end of the grip section. The slope of a first portion of the outer surface of the main body wall is different than the slope of a second portion.

Abstract: Methods of making a set of golf clubs and shafts that are matched according to vibration frequency are disclosed. The methods may include a random selection of shafts from a stock of raw shafts, wherein the vibration frequency of each shaft is determined and then each shaft is assigned a club head number. By determining conversion values based on desired and actual club head weights for each shaft and by determining a value between a desired and measured frequency of each shaft, a total frequency conversion value may be obtained. The total frequency conversion value may then be used to determine an amount to trim each shaft and thereby linearly match each shaft in the set based on vibration frequency and an increase in club head number.