Disclosed is a golf club set having harmonized golf club performance among
the club numbers. In the golf club set, for at least three golf clubs, a
ratio or a sum of a frequency, the frequency being measured by vibrating
a tip portion of a golf club shaft constituting each of the golf clubs,
and a frequency, the frequency being measured by vibrating a rear end
portion of the golf club shaft, is determined in relation with order of
the club number.