Birch, Stewart, Kolasch & Birch, LLP
Golf club shaft
When a distance from a shaft front end to a shaft gravity center point is LG and a full length of the shaft is LS, 0.54≦LG/LS≦0.65 is satisfied. A golf club shaft, wherein a shaft weight is 56 g or more, and a bending rigidity value EI at a point of 630 mm from the shaft front end to the shaft rear end side is 3.6 kgf·m2 or less.
Dunlop Sports Co. Ltd.
A A A
A63B A63B A63B
inventional inventional additional
Takashi Hiroshi
Nakano Hasegawa