Patent ID: 6929562

Claim:
A golf club shaft made of a fiber-reinforced resin in which a difference between a maximum EI value and a minimum EI value in a range from a tip to a position spaced therefrom at a distance corresponding to not less than 40% nor more than 60% of a whole length of said shaft is set to less than 10% of an average of said maximum EI value and said minimum EI value in said range; wherein a diameter of said tip of said shaft is set to not less than 9.0 mm nor more than 12.0 mm; and wherein a minimum EI value in a range from a butt to a position spaced therefrom at a distance corresponding to 30% of said whole length of said shaft is set to not less than 1.7 times nor more than 3.5 times larger than said maximum EI value in said range from said tip to said position spaced therefrom at said distance corresponding to not less than 40% nor more than 60% of said whole length of said shaft.