Patent ID: 7803063

Claim:
A golf club shaft having a weight not less than 30 g nor more than 60 g; said golf club shaft comprising a bias layer composed of a prepreg whose reinforcing fibers have an orientation angle of not less than ±10° nor more than 80° to an axis of said golf club shaft; and a plurality of straight layers each composed of a prepreg whose reinforcing fibers have an orientation angle within 0°±10° to said axis of said golf club shaft, wherein at least one partial reinforcing hoop layer whose reinforcing fibers have an orientation angle of within 90°±10° to said axis of said golf club shaft is disposed in only an important reinforcing region in a range from a point P spaced at 15% of a full length of said golf club shaft from a grip-side butt thereof to a point Q spaced at 45% of said full length of said golf club shaft from said grip-side butt thereof.