Method of evaluating golf club, golf club, and golf club set

摘要

A golf club is evaluated by measuring a moment of inertia about an axis perpendicular to a face plane of the golf club head through a center of a mass of the golf club head. The golf club has the evaluation imparted by a moment of inertia information relating to a value of the moment of inertia or a value obtained by dividing the moment of inertia by a mass value of the golf club head. A golf club set is composed of at least three golf clubs having different loft angles and each of the golf clubs has the size of the moment of inertia adjusted corresponding to an order of golf club number or an order of a value of the loft angle. The moment of inertia changes linearly corresponding to the order of the golf club number or the loft angle.