Provided is a drift car for children, including a car body, a driving system and a control system, the driving system includes a front wheel set, a rear wheel set and a motor set on the car body, the front wheel set includes a left front wheel and a right front wheel, and the rear wheel set includes a left rear wheel and a right rear wheel, the control system includes an on-board controller arranged in the car body, and the motor set includes a left motor and a right motor, in which the left motor is connected to the left front wheel or the left rear wheel, the right motor is connected to the right front wheel or the right rear wheel, and the left and right motors are both connected to the on-board controller; the controller system also includes a drift trigger switch connecting to the on-board controller.

Provided is a drift car for children, including a car body, a driving system and a control system, the driving system includes a front wheel set, a rear wheel set and a motor set on the car body, the front wheel set includes a left front wheel and a right front wheel, and the rear wheel set includes a left rear wheel and a right rear wheel, the control system includes an on-board controller arranged in the car body, and the motor set includes a left motor and a right motor, in which the left motor is connected to the left front wheel or the left rear wheel, the right motor is connected to the right front wheel or the right rear wheel, and the left and right motors are both connected to the on-board controller; the controller system also includes a drift trigger switch connecting to the on-board controller.

A spherical/elliptical single-wheeled vehicle comprises a motor, pedals and a wheel. The motor comprises a motor shell and a spindle having two ends fixedly connected to the pedals respectively. The wheel is spherical or elliptical and is of a hollow structure having two ends formed with openings, and the wheel is arranged on the motor housing in a sleeving manner, is fixedly connected to the motor housing, and comprises a sleeve made from an elastic material. The wheel has a large contact area with the ground at any angles, thus the controllability of the single-wheeled vehicle is greatly improved; in addition, users can get on the vehicle easily, and the operation difficulty of the single-wheeled vehicle is lowered, and user experience is improved; and the reinforcing shells are used to support the two ends of the spherical/elliptical wheel, so that the structural stability of the spherical/elliptical single-wheeled vehicle is improved.

A wheel assembly for a model vehicle is provided. The wheel assembly may include a wheel base configured for mounting an R/C vehicle tire and a colored trim piece provided on a facing surface of the wheel base. In addition, the wheel assembly may include a wheel face configured to allow portions of the colored trim piece to be visible when the wheel face is attached to the wheel base. The wheel assembly may also include a hub cap assembly that comprises a hub cap and a retainer. Wherein the hub cap assembly is removably secured against the wheel base via the retainer.

A ride-on vehicle, such as for a child, includes a vehicle body and one or more wheels that support the vehicle body relative to a surface. At least one of the wheels includes a hub motor arrangement that provides a drive torque for propelling the vehicle. The hub motor arrangement includes a housing defining an interior space. An axle or other mounting element(s) define an axis of rotation of the housing. Preferably, the axle or other mounting element(s) do not pass completely through the housing. A motor drives the housing through a transmission. Preferably, the motor is a standard, compact motor that is positioned on the axis of rotation and can be laterally offset from a central plane of the housing. In some embodiments, a traction element is carried directly by the housing.

An eccentric wheel adjustment device includes a hub (1), an adjustment disk (2) and a release structure (3). The hub (1) has an axle portion (10) eccentrically arranged and an inner ring portion (11) formed around the axle portion (10). The adjustment disk (2) has a disk seat (20) for the hub (1) being pivotally disposed thereon and a positioning member (21) for positioning the hub (1) on the disk seat (20). The positioning member (21) has an outer ring portion (210) for aligning the inner ring portion (11) of the hub (1) in the outer ring portion (210). The release structure (3) includes a limiting block (30) and a switch member (31) driving the limiting block (30) to act so as to drive the limiting block (30) to straddle between the hub (1) and the adjustment disk (2) or to move back to the inner ring portion (11).

A wheel bearing having a cup, a cone and a washer. The cone is of a complementary shape to the cup and the washer abuts a surface of the cone. Each of the cup, the cone and the washer are made from a self-lubricating polymer.

A self-propelled device is disclosed that includes a center of mass drive system. The self-propelled device includes a substantially cylindrical body and wheels, with each wheel having a diameter substantially equivalent to the body. The self-propelled device may further include an internal drive system with a center of mass below a rotational axis of the wheels. Operation and maneuvering of the self-propelled device may be performed via active displacement of the center of mass.

A toy vehicle includes a chassis, at least two wheels, and an actuating mechanism configured to couple the at least two wheels to the chassis and to move the at least two wheels between a retracted position and an extended position in which a width of each wheel of the at least two wheels is increased. The actuating mechanism includes a lever configured to be moved between a first position corresponding to the retracted position of the at least two wheels and a second position corresponding to the extended position of the at least two wheels. The actuating mechanism further may include an actuator configured to move the lever from the first position to the second position and from the second position to the first position.

A foldable structure of an electric vehicle is disclosed. In the foldable structure, a frame defines a stowing space, and includes a connection base and a rotatable seat. The connection base has a chute and the seat includes a link rod. The wheel part includes two wheel casings, a tire and a driving device, and a containing space is formed between the wheel casings for containing the tire and the driving device. The wheel casings has a rotator cap protruded at tops thereof, and the rotator cap has an axle hole longitudinally cut therethrough, and the rotator cap is pivotally connected with the rotatable seat by the axle hole, whereby the link rod can be slid into the chute, and the two wheel casings and the tire can be laterally rotated into the stowing space, such that the electric vehicle can just occupy smaller space.