An adjustable interchangeable golf club with a faceplate-based platform to receive components for enhancing and controlling various aspects that control the golf ball flight and spin characteristics. Disclosed are components for adjusting loft and bounce angle, and interchangeable faceplate and rear flange styles. Novel milled surface roughness for enhanced spin control is disclosed along with new milling methods for achieving optimal surface roughness. Lightweight hosel and consequent redistribution of mass in club head greatly increases the inertia of the golf club. Centrally located hosel position aids in club head stability on off-center hits. This results in a golf club that hits the ball higher, straighter, longer, and with increased ball spin characteristics.

Representative embodiments of the present technology include a bat having a barrel shell and a frame structure. The barrel shell may include a barrel region of the bat and part of a tapered region of the bat. The frame structure may include a first portion positioned outside the barrel shell and a second portion positioned inside the barrel shell. In some embodiments, a distal end of the frame structure is in the barrel region but is longitudinally spaced from a distal end of the barrel shell. In some embodiments, the distal end of the frame structure is longitudinally spaced from an end cap of the bat. The barrel shell may flex or pivot relative to the second portion of the frame structure. In some embodiments, the only connection between the frame structure and the barrel shell within the barrel shell may be within the tapered region.

Representative embodiments of the present technology include a bat having a barrel shell and a frame structure. The barrel shell may include a barrel region of the bat and part of a tapered region of the bat. The frame structure may include a first portion positioned outside the barrel shell and a second portion positioned inside the barrel shell. In some embodiments, a distal end of the frame structure is in the barrel region but is longitudinally spaced from a distal end of the barrel shell. In some embodiments, the distal end of the frame structure is longitudinally spaced from an end cap of the bat. The barrel shell may flex or pivot relative to the second portion of the frame structure. In some embodiments, the only connection between the frame structure and the barrel shell within the barrel shell may be within the tapered region.

Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a body portion having a center cavity portion, a toe-side cavity portion, a heel-side cavity portion, a first port on the body portion connected to the toe-side cavity portion, a second port on the body portion connected to the heel-side cavity portion, a first filler material in the center cavity portion, and a second filler material in the toe-side cavity portion and the heel-side cavity portion. The toe-side cavity portion is at least partially filled with the second filler material from the first port or the second port, and heel-side cavity portion is at least partially filled with the second filler material from the first port or second port. Other examples and embodiments may be described and claimed.

A modular golf club head system provides a hosel adapter that can be attached to the club head at different rotational positions to selectively change the loft or lie angle of the club head. The club head defines a hosel ball socket, and a locator pin extends from the socket. The hosel adapter has a shaft end configured for connecting to a golf club shaft, and a distal end including a hosel ball inserted into the hosel ball socket. The hosel ball defines at least one first locator pin recess and at least one second locator pin recess. The locator pin recesses formed in said hosel ball at differing angles, wherein insertion of the locator pin into the first locator pin recess defines at least one of the loft and lie angle of the club head, and insertion of the locator pin into the second locator pin recess defines a different loft or lie angle of the club head.

A sporting good implement, such as a hockey stick or ball bat, includes a main body. The main body may be formed from multiple layers of a structural material, such as a fiber-reinforced composite material. One or more microlattice structures may be positioned between layers of the structural material. One or more microlattice structures may additionally or alternatively be used to form the core of a sporting good implement, such as a hockey-stick blade. The microlattice structures improve the performance, strength, or feel of the sporting good implement.

A sporting good implement, such as a hockey stick or ball bat, includes a main body. The main body may be formed from multiple layers of a structural material, such as a fiber-reinforced composite material. One or more microlattice structures may be positioned between layers of the structural material. One or more microlattice structures may additionally or alternatively be used to form the core of a sporting good implement, such as a hockey-stick blade. The microlattice structures improve the performance, strength, or feel of the sporting good implement.

A golf club head including a striking face, a back portion, and a back cover attached to the back portion, wherein the golf club head includes damping structures and materials to achieve desired acoustic characteristics.

A golf club head including a striking face, a back portion, and a back cover attached to the back portion, wherein the golf club head includes damping structures and materials to achieve desired acoustic characteristics.

Embodiments of golf club heads and methods to manufacture golf club heads may include a golf club head having a body portion, a first mass portion, and a second mass portion. The first mass portion has a first mass portion first end and a first mass portion second end such that a distance between the first mass portion first end and the first mass portion second end defines a first mass portion dimension. The second mass portion includes a second mass portion first end and a second mass portion second end such that a distance between the second mass portion first end and the second mass portion second end defines a second mass portion dimension. The second mass portion dimension may be substantially greater than the first mass portion dimension, and a total mass of the second mass portion may be greater than or equal to three times a total mass of the first mass portion. Other examples and embodiments may be described and claimed.