| 摘要 |
A shaft of the present invention has a tip reinforcing layer. A prepreg s9 for the tip reinforcing layer has a portion having a larger circumferential direction width Ws toward a tip side. The prepreg s9 for the tip reinforcing layer has a thickness Pt of 0.06 mm or greater and 0.12 mm or less. An edge Ds of the tip reinforcing layer extends in an axial direction of the shaft while circulating in a circumferential direction of the shaft. When a height h1 of the edge Ds at a position placed apart from a tip by 60 mm is defined as h11; the height h1 at a position placed apart from the tip by 120 mm is defined as h12; the height h1 at a position placed apart from the tip by 180 mm is defined as h13; the height h1 at a position placed apart from the tip by 240 mm is defined as h14; and the height h1 at a position placed apart from the tip by 300 mm is defined as H15, an average value Ha of the five heights h11 to h15 is equal to or less than 0.03 mm.
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