| 摘要 |
PROBLEM TO BE SOLVED: To provide a golf club in which performance of a shaft can be recognized from appearance, or to quantify performance of the shaft related to catching of a ball.SOLUTION: A golf club includes a grip, a shaft, and a golf club head, A represented by the following <expression 1> is 0.1150 or greater, and a pattern inclined to a ball hitting direction (the left direction) is applied to a portion capable of being viewed from a player in time of address of the outer face of the shaft to the tip direction from hand of the shaft S. <expression 1> A=(B-T)/640+((B-C)-(B-T)/2)/1000+1/T, here, T is a flexural rigidity in a position of 210 mm from the tip of the shaft S, C is a flexural rigidity in a position of 530 mm from the tip of the shaft S, B is a flexural rigidity in a position of 850 mm from the tip of the shaft S, and a unit of the flexural rigidity is N m. |
