The KBS TOUR® Series optimizes player performance by offering a unique integration of shaft weight and flex; when shaft weight increases, flex stiffens in a corresponding manner. The progressive weight and flex system works in five gram increments, moving from 95g to 130g, and is designed on the premise of Cycle per Minute (CPM) matching, a method KBS shaft designer Kim Braly helped pioneer.
Progressive weight and flex serves two major purposes. First, it guarantees players are fit with a shaft weight and flex that are based on swing speed. Second, it ensures each set of KBS shafts is precisely matched in flex and weight for more consistent performance. Slower speeds have a tendency to fit into lighter weight shafts, while faster swing speeds will move into heavier weight options.