Abstract: Improved skateboards and methods of obtaining or providing skateboards with improved trucks. Trucks have two axles or axes, two primary wheels, and two secondary wheels, and skateboards have eight wheels, four in front and four at the rear portion of the skateboard. The four primary wheels support most or all of the weight of the skateboard when the skateboard is on a flat surface, and the two secondary wheels support the weight of one portion of the skateboard (e.g., front or rear) when the primary wheels cross a crack (e.g., a sidewalk contraction joint). In various embodiments, the secondary wheels are located outboard of the primary wheels. Further, in a number of embodiments, the axis of rotation or axle of the primary wheels remains parallel to that of the secondary wheels, whether the skateboard is going straight or turning.

Abstract: Embodiments of golf club heads with apertures and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed.

Abstract: Described herein is a golf club head devoid of a crown, the club head comprising: a front end having a bottom rail, a top rail, and a strikeface, the strikeface including a striking surface, a back surface, and a reinforcement element extending from the back surface of the strikeface; a rear end opposite the front end; a heel portion; a toe portion opposite the heel portion; a sole coupled to the front end along the bottom rail at a sole transition region, the sole extending toward the rear end of the golf club head and including a sole thickness, at least one weight member, and a perimeter wall extending from the front end near the heel portion to the front end near the toe portion along the rear end of the club head, wherein the perimeter wall decreases in height from the front end toward the rear end of the club head.

Abstract: Embodiments of golf club heads with apertures and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed.

Abstract: Improved skateboards and methods of obtaining or providing skateboards with improved trucks. Trucks have two axles or axes, two primary wheels, and two secondary wheels, and skateboards have eight wheels, four in front and four at the rear portion of the skateboard. The four primary wheels support most or all of the weight of the skateboard when the skateboard is on a flat surface, and the two secondary wheels support the weight of one portion of the skateboard (e.g., front or rear) when the primary wheels cross a crack (e.g., a sidewalk contraction joint). In various embodiments, the secondary wheels are located outboard of the primary wheels. Further, in a number of embodiments, the axis of rotation or axle of the primary wheels remains parallel to that of the secondary wheels, whether the skateboard is going straight or turning.

Abstract: Golf club heads with ribs are described herein. A golf club head comprises a first rib protruding from an internal surface of the club head, and a second rib protruding from the internal surface of the club head. The first rib and the second rib comprise a varying height. The club head further comprises a first side rib located on the internal surface at a heel end of the club head, and a second side rib located on the internal surface at a toe end of the club head. The first side rib and the second side rib generally extend in a front end to rear end direction, and can be linear or curvilinear. The ribs provide structural support and sound control for the club head.

Abstract: Golf club heads with ribs are described herein. Other embodiments and related methods are also disclosed herein.

Abstract: Embodiments of golf club heads with hosel inserts are presented herein. Other embodiments can be described and claimed.

Abstract: Described herein is a golf club head devoid of a crown, the club head comprising: a front end having a bottom rail, a top rail, and a strikeface, the strikeface including a striking surface, a back surface, and a reinforcement element extending from the back surface of the strikeface; a rear end opposite the front end; a heel portion; a toe portion opposite the heel potion; a sole coupled to the front end along the bottom rail at a sole transition region, the sole extending toward the rear end of the golf club head and including a sole thickness, at least one weight member, and a perimeter wall extending from the front end near the heel portion to the front end near the toe portion along the rear end of the club head, wherein the perimeter wall decreases in height from the front end toward the rear end of the club head.

Abstract: A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Abstract: Golf club heads with ribs are described herein. Other embodiments and related methods are also disclosed herein.

Abstract: Golf club heads with ribs are described herein. Other embodiments and related methods are also disclosed herein.

Abstract: Embodiments of collapsible wheels and methods of making collapsible wheels are generally described herein. The collapsible wheels can each comprise a plurality of wheel sections, a plurality of rims, and spokes connecting the plurality of wheel sections to the plurality of rim portions. The plurality of rim portions are positioned along a perimeter of a circle that defines a central plane of the wheel. Each wheel section supports one or more spokes that connect to one or more of the rim portions. The wheel sections are rotatable relative to each other around an axis from a collapsed configuration to an expanded position. Other embodiments may be described and claimed.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

Abstract: Some embodiments include club heads having reinforced club head faces. Other embodiments of related club heads and methods are also disclosed.

Abstract: A collapsible wheel having a plurality of wheel sections. Each wheel section has at least a rim portion, a hub portion defining a rotational axis, and a pair of spokes. Each wheel section supports one or more spokes that extend from the hub portion and connect to one or more of the rim portions. The wheel sections rotate relative to each other about the rotational axis from a collapsed configuration to an expanded position, defining a central plane of the wheel. The rim portions are oriented generally perpendicular to the central plane.

Abstract: Some embodiments include a reinforced face of a club head. Other embodiments for related reinforced faces of club heads and related methods are also disclosed.

Abstract: Embodiments of golf club heads with apertures and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed.

Abstract: Some embodiments include club heads having reinforced club head faces. Other embodiments of related club heads and methods are also disclosed.