A tricycle has a forward oriented fork member (20) supported for rotation about a steering axis (14) of the tricycle, a handle bar (50) mounted to the fork member, a cargo unit (24) supported by the fork member, and a pair of transversally spaced linkages (30), wherein each linkage at a proximal end is linked to the fork member and at a distal end supports a respective front wheel (16) of the tricycle. The cargo unit and the linkages are shiftable between respective forward and backward end positions to thereby transform the tricycle to a wheel cart and vice versa.

A tricycle has a forward oriented fork member (20) supported for rotation about a steering axis (14) of the tricycle, a handle bar (50) mounted to the fork member, a cargo unit (24) supported by the fork member, and a pair of transversally spaced linkages (30), wherein each linkage at a proximal end is linked to the fork member and at a distal end supports a respective front wheel (16) of the tricycle. The cargo unit and the linkages are shiftable between respective forward and backward end positions to thereby transform the tricycle to a wheel cart and vice versa.

An alignment tool for aligning the handlebars relative to the front fork of a bicycle. The alignment tool provides a handlebar connection point and a fork connection point that simultaneously engages the handlebars and the fork assembly, respectively, spaced apart from the fork assembly. In certain embodiment, the handlebar connection point and the fork connection point are movable relative to each other between a plurality of contracted and extended conditions. The method of using the present invention embodies the alignment tool to engage while adjusting the handlebars relative to the fork assembly in such as ways as to gauge the alignment tool's alignment, and thus the handlebar's assembly, relative to the fork assembly.

An alignment tool for aligning the handlebars relative to the front fork of a bicycle. The alignment tool provides a handlebar connection point and a fork connection point that simultaneously engages the handlebars and the fork assembly, respectively, spaced apart from the fork assembly. In certain embodiment, the handlebar connection point and the fork connection point are movable relative to each other between a plurality of contracted and extended conditions. The method of using the present invention embodies the alignment tool to engage while adjusting the handlebars relative to the fork assembly in such as ways as to gauge the alignment tool's alignment, and thus the handlebar's assembly, relative to the fork assembly.

A powered handlebar adjustment assembly adapted for use with a vehicle having first and second forks aligned in a parallel relation along a first longitudinal axis, first and second triple tree supports aligned in a second axis transverse to the first axis, and a set of handlebars mounted parallel to the first and second triple trees and transverse to the first and second forks. The assembly includes a first and second telescopic supports, each having a first section thereof mounted between and in parallel with the first axis of the first and second forks and between and transverse to the axis of the first and second triple tree supports. A second section is mounted between the first triple tree and the handlebars at a proximal end of the second section and concentric with the first section at a distal end of the second section for translation relative thereto between the first and second forks and parallel thereto. First and second actuators are mounted between the first and second forks and between the first and second triple tree supports. Each actuator is operationally coupled to the second section of a telescopic support via the first section thereof. Actuation of the actuators via a switch mounted on the handlebars is effective to cause the second sections of the telescopic supports to translate relative to the first sections thereof and thereby move the handlebars from a first position to a second position.

The present invention describes a transportation device 1 comprising multiple motorized wheels, for propulsion of the transportation device 1, wherein the transportation device 1 comprises at least one user ride-on unit 50, wherein the transportation device 1 has at least 4 wheels 4L, 4R, 5L, 5R, and wherein the transportation device 1 comprises a frame 70 arranged to provide a standing and/or walking space for the user.

Systems and methods are described for providing a high-rise ahead-type handlebar stem for a bicycle. Embodiments of the high-rise ahead stem include a main stem tube and a handlebar stem tube. The main stem tube includes a proximal region non-overlapping with a distal region. The proximal region includes a rotational securement structure. The handlebar stem tube extends from the distal region and terminates in a handlebar interface structure. The high-rise ahead stem provides various features, including relatively simple adjustment of handlebar height over a relatively large range of heights, while maintaining a high level of strength.

A stem assembly and an electric vehicle are provided. The stem assembly includes: a stem telescoping mechanism including a first hollow tube, a second hollow tube, and a locking mechanism, the locking mechanism having a locked state and an movable state; a handle folding mechanism arranged to the stem telescoping mechanism, the handle folding mechanism including a handle assembly and a first limiting member, the first limiting member being movably arranged, and having a first limiting position and a first evading position; and a driving mechanism connected to both the locking mechanism and the first limiting member, and configured to be operated to control the stem telescoping mechanism and the handle folding mechanism to synchronously move.

A scooter, including a main body, a front wheel, a first rear wheel, a second rear wheel, a drive part and a controller. The front wheel is rotatably arranged at a front part of the main body. The first rear wheel and the second rear wheel are spaced apart and rotatably arranged at a rear part of the main body. One drive part is provided, which is connected to the first rear wheel, and is configured to merely drive the first rear wheel to rotate, so as to driving the main body to move. The controller is electrically connected to the drive part to adjust a rotation speed of the drive part, so as to adjust a rotation speed of the first rear wheel.

Systems and methods are described for providing a high-rise ahead-type handlebar stem for a bicycle. Embodiments of the high-rise ahead stem include a main stem tube and a handlebar stem tube. The main stem tube includes a proximal region non-overlapping with a distal region. The proximal region includes a rotational securement structure. The handlebar stem tube extends from the distal region and terminates in a handlebar interface structure. The high-rise ahead stem provides various features, including relatively simple adjustment of handlebar height over a relatively large range of heights, while maintaining a high level of strength.