Examples of golf club shafts and methods to manufacture golf club shafts are generally described herein. In one example, a golf club shaft includes a first tubular portion formed from a first material and coupled to a second tubular portion having a plurality of layers formed from a second material and a third material. A reinforcing member is disposed in at least one of the plurality of layers and is formed from a fourth material. The reinforcing member extends a length that is less than or equal to a length of the second tubular portion. The first, second, third, and fourth materials are different from one another. Other examples and examples may be described and claimed.

A golf shat has a tip end portion, a butt end portion, an intermediate portion defined between respective longitudinal ends adjoining to the tip end portion and the butt end portion, wherein the intermediate portion is sectioned into a first portion and a second portion, the first portion is formed greater than a reducing trend in the wall thickness to cause an upward projection in a distribution curve of a bending rigidity, and the second portion is located axially adjoining to the first portion between the first portion and the butt end portion and is formed smaller than the reducing trend in the wall thickness to cause a downward projection in the distribution curve of the bending rigidity.

A golf shat has a tip end portion, a butt end portion, an intermediate portion defined between respective longitudinal ends adjoining to the tip end portion and the butt end portion, wherein the intermediate portion is sectioned into a first portion and a second portion, the first portion is formed greater than a reducing trend in the wall thickness to cause an upward projection in a distribution curve of a bending rigidity, and the second portion is located axially adjoining to the first portion between the first portion and the butt end portion and is formed smaller than the reducing trend in the wall thickness to cause a downward projection in the distribution curve of the bending rigidity.

Examples of golf club shafts and methods to manufacture golf club shafts are generally described herein. In one example, a golf club shaft includes a first tubular portion coupled to a second tubular portion. The second tubular portion includes a plurality of materials and is defined by a first length having a first uniform outer diameter, a second length having a variable outer diameter, and a third length having a second uniform outer diameter different from the first uniform outer diameter. The second length is located between the first length and the third length. A total length of the second tubular portion is greater than a total length of the first tubular portion. Other examples and examples may be described and claimed.