Birch, Stewart, Kolasch & Birch, LLP
Golf club
A golf club 2 includes a shaft 6 having a tip end Tp and a butt end Bt, a head 4 and a grip 8. The shaft 6 includes a plurality of carbon fiber reinforced layers. The layers include a straight layer, a bias layer and a hoop layer. When a weight of the hoop layer is defined as WF, and a shaft weight is defined as WS, WF/WS is 0.18 or greater. The shaft weight WS is 42 g or less. In the shaft 6, a point 200 mm distant from the butt end Bt is defined as P1, and a region between the point P1 and the butt end Bt is defined as a specific butt region Rb. A weight of the hoop layer in the specific butt region Rb is defined as WFb, and a shaft weight in the specific butt region Rb is defined as WSb.
SUMITOMO RUBBER INDUSTRIES, LTD.
A A A A A
A63B A63B A63B A63B A63B
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Takashi
Nakano