Abstract: Provided is a fiber-reinforced golf club shaft with small cantilever bending displacement despite its light weight, and provided to exhibit a longer carry distance while showing excellent ball flight patterns regardless of the skills of a golfer. The golf club shaft configured to have a plurality of fiber-reinforced plastic layers made of resin and a fiber material, comprising: wherein formula (1) below is satisfied when the length of the golf club shaft is set as “L” (mm), the weight as “W” (g), and the displacement as “D” (mm) that is observed when a cantilever bending test is conducted by exerting a predetermined load in the vicinity of the tip end while supporting the butt end to measure the displacement at the tip end. 455?D+7.

Abstract: Provided is a fiber-reinforced golf club shaft with small cantilever bending displacement despite its light weight, and provided to exhibit a longer carry distance while showing excellent ball flight patterns regardless of the skills of a golfer. The golf club shaft configured to have a plurality of fiber-reinforced plastic layers made of resin and a fiber material, comprising: wherein formula (1) below is satisfied when the length of the golf club shaft is set as “L” (mm), the weight as “W” (g), and the displacement as “D” (mm) that is observed when a cantilever bending test is conducted by exerting a predetermined load in the vicinity of the tip end while supporting the butt end to measure the displacement at the tip end. 455?D+7.