Birch, Stewart, Kolasch & Birch, LLP
Golf club shaft and golf club using the same
A golf club shaft extending from a tip end to a butt end and made of fiber reinforced resin, comprises a weight being in a range of from 30 to 55 g, a whole length LS between the tip end and the butt end, a center of gravity of the shaft located with a distance LG from the tip end, a ratio of the distance LG to the whole length LS being in a range of from 0.54 to 0.65, a tip end portion which has a length of 300 mm from the tip end toward the butt end, the tip end portion including fibers including a pitch based carbon fiber and a PAN based carbon fiber, and said fibers in the tip end portion comprising, in weight, the pitch based carbon fiber of from 15 to 25% and the PAN based carbon fiber of from 85 to 75%.
Dunlop Sports Co. Ltd.
Y A A A
Y10T A63B A63B A63B
additional additional additional inventional
Takashi Hiroshi
Nakano Hasegawa