| 摘要 |
A golf club comprises a shaft and a head, wherein a moment Ix of inertia of the golf club head around a vertical axis passing through the center of gravity of the club head is not less than 3800 (g.sq.cm), and a shaft-torque T (degrees) of the golf club shaft and the moment Ix of inertia satisfy the following condition (1): T=<0.0025xIx-6.0.
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