Abstract: A ramp system includes at least one ramp component. Each ramp component includes a front surface provided a user sliding thereon and a back surface opposite to the front surface and facing to the ground. The at least one ramp component each has a connecting portion including at least one connecting block and at least one connecting recess spaced by the connecting block. The at least one connecting block and the at least one connecting recess can be assembled with that of other ramp components at random to create a skating facility. These ramp components are easily assembled for use and disassembled for storage and transport.

Abstract: A balance bike includes a frame, and front and rear wheel assemblies respectively pivotally mounted on two opposite ends of the frame. The rear wheel assembly is pivotable with respect to the frame to synchronously adjust a seat height defined as a vertical distance that extending from a saddle of the frame to a horizontal plane and a wheelbase defined as a horizontal distance that extending between centers of two wheels respectively rotatably mounted in the front and rear wheel assemblies to be suitable for various size requirements.

Abstract: A skateboard includes a frame and a pedal. The frame has two opposing ends including a first end and a second end. The frame further has a connecting portion formed between and connected to the first end and the second end. The first end includes at least one guiding portion formed on one side thereof. The pedal is installed to the first end of the frame and includes a coupling portion. The pedal has at least one retaining portion formed on one lateral side of the coupling portion and corresponding to the guiding portion. The retaining portion is slidably disposed to the guiding portion. The frame and the first pedal are separately manufactured.

Abstract: A balance bike includes a frame, front and rear wheels, a seat, a joining structure, a front fork, and a steering handle. The joining structure is pivotally joined to the frame and pivotal between first and second positions. The joining structure includes a joining end and a receiving end. The front and rear wheels are disposed apart from each other, and the balance bike defines a first longitudinal dimension when the joining structure is in the first position. The front and rear wheels are disposed adjacent to each other, and the balance bike defines a second longitudinal dimension when the joining structure is in the second position. The first longitudinal dimension is larger than the second longitudinal dimension.

Abstract: A balance bike balance bike includes a frame, front and rear wheels, a seat, a joining structure, a front fork, and a steering handle. The joining structure is pivotally joined to the frame and pivotal between first and second positions. The joining structure includes a joining end and a receiving end. The front and rear wheels are disposed apart from each other and the balance bike defines a first longitudinal dimension when the joining structure is in the first position. The front and rear wheels are disposed adjacent to each other and the balance bike defines a second longitudinal dimension when the joining structure is in the second position. The first longitudinal dimension is larger than the second longitudinal dimension.

Abstract: According to the present invention, the main purpose is to provide a skateboard comprising a frame and a pedal. The frame has two opposing ends including a first end and a second end. The frame further has a connecting portion formed between and connected to the first end and the second end. The first end includes at least one guiding portion formed on one side thereof. The pedal is installed to the first end of the frame and including a coupling portion. The pedal has at least one retaining portion formed on one lateral side of the coupling portion and corresponding to the guiding portion. The retaining portion is slidably disposed to the guiding portion. The frame and the first pedal are separately manufactured.

Abstract: A scooter includes a board for supporting the user thereof, at least one wheel assembly mounted on the board for facilitating movement and transportation of the board, and a braking system operable in a first mode that engages with and imparts a braking force to the at least one wheel assembly for stopping the scooter, and in a second mode that is subject to a force and is caused to disengage from the at least one wheel assembly for allowing the scooter to be moved without being subject to any braking force.

Abstract: A scooter includes a board for supporting the user thereof, at least one wheel assembly mounted on the board for facilitating movement and transportation of the board, and a braking system operable in a first mode that engages with and imparts a braking force to the at least one wheel assembly for stopping the scooter, and in a second mode that is subject to a force and is caused to disengage from the at least one wheel assembly for allowing the scooter to be moved without being subject to any braking force.

Abstract: A skate comprises a soleplate member including a heel support and a toe support overlapping and adapted to slide with respect to the heel support in a longitudinal axis and fixed in a desired position as to achieve a desired length of the soleplate member; wherein the toe support includes first and second teeth spaced from each other; and an adjustment unit including teeth adapted to selectively wedge with the first teeth and a wedging end adapted to selectively wedge with the second teeth.

Abstract: A skate comprises a soleplate member including a heel support and a toe support overlapping and adapted to slide with respect to the heel support in a longitudinal axis and fixed in a desired position as to achieve a desired length of the soleplate member; wherein the toe support includes first and second teeth spaced from each other; and an adjustment unit including teeth adapted to selectively wedge with the first teeth and a wedging end adapted to selectively wedge with the second teeth.

Abstract: There is disclosed an in-line skate with an adjustable length. The in-line skate includes a heel support, a toe support, a positioning element, a pushing element, and a switch. The heel support includes two parallel transverse grooves near a flank, a cavity near an opposite flank, a longitudinal groove between the transverse grooves and the cavity, and a slot therein. The toe support includes a slide put movably in the longitudinal groove and a series of pockets in the slide. The positioning element includes a button put movably in the cavity and two latches put movably in the transverse grooves of the heel support for entering a selective pair of the pockets of the toe support, thus keeping the toe support in selective one of several positions relative to the heel support. The pushing element is put movably in the cavity for pushing the button and hence the latches. The pushing element defines a tunnel.

Abstract: A skateboard comprises a board, two wheel units attached to an underside of the board, and a braking member attached to the underside of the board. The braking member includes at least one metallic braking block that is in contact with ground during braking. The metallic braking block sparks during braking to provide an amusement effect.