Described herein is a system of golf clubs having shafts with ascending weights (shaft weights that increase as shaft lengths decrease). The system of golf clubs can be manufactured by implementing a method called stepping, which allows the system of golf clubs with ascending weights to be manufactured with reduced quantity of inventory.

Described herein is a system of golf clubs having shafts with ascending weights (shaft weights that increase as shaft lengths decrease). The system of golf clubs can be manufactured by implementing a method called stepping, which allows the system of golf clubs with ascending weights to be manufactured with reduced quantity of inventory.

A golf gear fitting system (2) includes a swing data acquisition unit (21) to acquire swing data from a sensor (11) installed in a golf club (1), a swing data storage unit (22) to store the swing data acquired by the swing data acquisition unit (21), a data classification unit (23) to classify the swing data stored in the swing data storage unit (22), and a data prediction unit (24) to predict swing data of specifications not measured by the sensor (11) by referring to the swing data classified in the data classification unit (23).

A system and method for weighting a golf club. The system is configured to adjust the overall club weight and the weight balance of a golf club. The system includes a weight assembly formed with a plurality of flexible cantilevered arms that interact with a weight member.

A golf club with improved weighting characteristic is disclosed. More specifically, the present invention discloses to a golf club wherein the improved weighting distribution stems from an increase in the mass of the golf club at a specific distance away from the butt end or proximal end of the golf club head to help increase the feel and minimize the dispersion of the golf shot by minimizing the pull and or draw tendencies of a golf shot.

A golf club with improved weighting characteristic is disclosed. More specifically, the present invention discloses to a golf club wherein the improved weighting distribution stems from an increase in the mass of the golf club at a specific distance away from the butt end or proximal end of the golf club head to help increase the feel and minimize the dispersion of the golf shot by minimizing the pull and or draw tendencies of a golf shot.

A system and method for weighting a golf club. The system is configured to adjust the overall club weight and the weight balance of a golf club.

A process for manufacturing a putter with a bi-material shaft is disclosed herein. The putter comprises a putter head, the bi-material shaft, a mass member and a grip. The bi-material shaft comprises a body with a tip end and a butt end. The body comprises a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point. The mass member is positioned within an opening at the butt end of the shaft. Mass from the shaft is transferred to the club head and the mass member in the butt end of the shaft.

Embodiments of adjustable length golf clubs and methods of manufacturing adjustable length golf clubs are generally described herein. Other embodiments may be described and claimed.

Embodiments of adjustable length golf clubs and methods of manufacturing adjustable length golf clubs are generally described herein. Other embodiments may be described and claimed.