Patent ID: 7736245

Claim:
A golf club shaft comprising a fiber-reinforced resin, the shaft having an actual length SL falling within the range of 800 to 1,200 mm and an actual weight Wr according to the equation W=Wr×46×25.4/SL, wherein W is at least 30 g and said shaft has an average flexural rigidity EIa of at most 4.0 kgf·m 2 , said shaft satisfies the following equation: EIa≧ 0.1 W− 0.5 and said shaft has a flexural rigidity EI(330) of 0.3 to 1.8 kgf·m 2 in which EI(330) denotes a flexural rigidity measured at a distance of 330 mm from the head side tip of the shaft.