A wake tower assembly for use with a watercraft, including an arch portion extending across a width of the watercraft, first and second pivoting structures coupled to first and second ends of the arch portion, the first and second pivoting structures configured to attach to port and starboard portions of the watercraft to facilitate rotational movement of the arch portion between a lowered position and an upright position, and a first locking mechanism provided to the first pivoting structure including a biased pin member configured to engage an opening of the first end such that when the arch portion is rotated from the lowered position to the upright position, a biasing force of the biased pin member causes the biased pin member to engage the opening to mechanically lock the arch portion in the upright position.

This application describes a handlebar and handlebar end assembly for effectively locking a handlebar end to a handlebar without the use of tools or instruments. The handlebar and handlebar end assembly according to an embodiment comprises a knob, threaded stud, non-threaded expansion retaining block, threaded expansion retaining block and handlebar. According to another embodiment, a wakeboard/water sports binding/boot attachment system for more securely attaching a wakeboard/water sports binding/boot to the ski/board is disclosed herein.

A wakeboard has a first outer shell, a second outer shell, a foam plate, an uneven portion, and a draining structure. The foam plate is wrapped in the first outer shell and the second outer shell. The uneven portion is formed on the first outer shell. The draining structure is formed at the uneven portion. The uneven portion is convenient for user to ride on. The draining structure prevents water from accumulating in the uneven portion.

An apparatus for towing a water sports performer including a first leg, a second leg, a header, and a tow-line-attachment structure. Each of the first leg and second leg is adapted for attachment to one of the port side of a centerline of a boat or the starboard side of a centerline of a boat. The header is capable of assuming a plurality of different header lengths, and includes a first header portion, a second header portion, a housing, and a locking mechanism. The housing connects the first header portion and the second header portion. The housing includes a first receiver configured to receive a second end of the first header portion at a plurality of different positions. The locking mechanism is configured to secure the second end of the first header portion to the housing in one of the plurality of different positions to set the header length.

An apparatus for automatically adjusting tension on retention member to hold multiple objects together. Examples include using retention apparatus to obtain optimal fit and use of a human wearable item such as article of footwear. Sensors may be used to sense changes in movement of the article of footwear, of the person wearing it, or of a third object such as a vehicle carrying the person. A retention member may surround at least a portion of the objects, and an actuator may be included that automatically rotates a rotating member such as a gear or pulley that may be coupled to the retention member. The rotating member may be configured to automatically adjust tension on the retention member many times per second based on control signals from control logic responsive to the sensors.

The invention is a portable ski tow with multiple settings to match the skiing ability of the skier. It can be mounted to any boat. It can be remote controlled to control the length of the ski rope to match the skiing event. The present invention is ski tow with a base, cover, motor, spool and ski rope with a wireless controller to set the length of the ski rope.

A water sport training device is disclosed comprising, in one embodiment, a raft having a distal nose portion and a proximal rear portion. The rear portion provides a pair of substantially spaced apart lateral pontoons and a first web spanning the space therebetween. A relatively rigid platform is positionable within the raft, substantially adjacent the first web. A buoyant seat portion is positioned substantially on a back half of the device between the pontoons and adjacent the platform. A tow rope attachment means is secured to the raft for selectively towing the device over a body of water. The device is configured such that a back half of the device has a center buoyancy sufficient for providing a stable surface to support the weight of a person while floating on water both at standstill and as being pulled through the water as by a boat.

A hull assembly is configured to accommodate propulsion in at least two directions at once. The hull assembly includes a dual bow board further comprising a first bow and a second bow with an insert box therebetween. The insert box travels through the dual bow board from a top side to a bottom side.

A water ski system which includes two essentially identical assemblies each assembly including a buoyant ski having a top surface, a bottom surface, a front, and a back configured to float on water. Each buoyant ski includes a pivoting paddle located on the bottom surface of the buoyant ski configured to deploy in a backwards motion and retract in a forward motion against a force of water in a motion similar to cross-country skiing. The device propels a user across water when manipulated. Each buoyant ski has a foot mount and a toe of a boot pivotally affixed to the top surface of the buoyant ski.

A body surfing device comprising a base and a wing attachment, having a wing strut and a wing extension that is rotatable between a deployed position, wherein the wing strut is substantially perpendicular to the base and wing extension, and a stowed position, wherein the wing strut and extension are substantially parallel to the base and the wing strut and extension are nested in a cavity located in the base. The base can also have extendable leg fins that extend between an extended position, wherein the leg fins extend from the back of the base, and a retracted position, wherein the leg fins are substantially nested in leg fins cavities located in the back of the base. The body surfing device may include levers or slide handles that, when actuated, move the wing attachment between the deployed and stowed positions and the leg fins between the extended and retracted positions.