Herein is disclosed a straddle-ridden vehicle frame stiffener comprising a support structure for stiffening the straddle-ridden vehicle frame, the support structure comprising a first side; and a second side, adjacent to the first side; a first mounting element for removably mounting the support structure to the straddle-ridden vehicle frame, the first mounting element being attached to the first side; a second mounting element for removably mounting the support structure to the straddle-ridden vehicle frame, the second mounting element being attached to the second side; and wherein the first side and the second side are rigidly connected to one another.

The present disclosure provides a multifunctional children's ride-on vehicle including a frame, a vehicle head, a front wheel, pedal mechanisms, a rear frame, a seat, rear wheel brackets, rear wheels, and a push rod. The frame is provided with a plurality of adjusting grooves, and the plurality of adjusting grooves are evenly distributed along the frame. The rear frame is provided with an adjusting block corresponding to the adjusting groove, and the adjusting block is embedded into the adjusting grooves. The frame is provided with a frame accommodating groove at the front end thereof, and the frame accommodating groove has a size same as that of the adjusting groove.

A moving body includes: a vehicle which includes a front wheel and rear wheels and which a passenger gets on; an unmanned carrier vehicle which is arranged at the back side of the vehicle, and includes a wheel and a driving unit which drives the wheel; and a coupler which couples the vehicle and the unmanned carrier vehicle. The coupler includes a biasing mechanism which biases a rear part of the vehicle toward an upper side of the vehicle, the biasing mechanism includes a first elastic member; when the passenger is on the vehicle, the first elastic member is deformed by the weight of the passenger to place the rear wheels in contact with a road surface, and when the passenger is not on the vehicle, the rear wheels are separated from the road surface by the elastic force of the first elastic member.

The present disclosure relates generally to bicycles, in particular, the present disclosure provides systems and devices for converting a standard bicycle into a cargo bicycle using various detachable components. The ability to convert a standard bicycle into a cargo bicycle and back again confers many advantages, including eliminating the need for a separate bicycle for transporting cargo and encouraging the use of bicycles as a mode of transportation.

The present disclosure relates generally to bicycles, in particular, the present disclosure provides systems and devices for converting a standard bicycle into a cargo bicycle using various detachable components. The ability to convert a standard bicycle into a cargo bicycle and back again confers many advantages, including eliminating the need for a separate bicycle for transporting cargo and encouraging the use of bicycles as a mode of transportation.

The present disclosure relates generally to bicycles. In particular, the present disclosure provides systems and devices for converting a standard bicycle into a cargo bicycle using various detachable components. The ability to convert a standard bicycle into a cargo bicycle and back again confers many advantages, including eliminating the need for a separate bicycle for transporting cargo and encouraging the use of bicycles as a mode of transportation.

A conversion kit for a snow vehicle has a front assembly component, the front assembly component has a front ski, a bracket that is attached to the front ski, two extension arms that are pivotally attached to the bracket extending upwardly from the front ski, and a rear assembly component having a two or more adjacent members, a mount attached to the pivot unit, comprising a clamping attachment on one end configured to retain a section of the frame on another end, a ski attachment terminating each adjacent member, a pivot unit, comprising at two horizontal pivot bars pivotally connecting the adjacent members at its ends, and pivotally connected to the mount at a midpoint, wherein the one or more horizontal pivot bars move the adjacent members interdependently, and wherein each member extends from a common pivot unit and terminates at a ski attachment.

A conversion kit for a snow vehicle has a front assembly component, the front assembly component has a front ski, a bracket that is attached to the front ski, two extension arms that are pivotally attached to the bracket extending upwardly from the front ski, and a rear assembly component having a two or more adjacent members, a mount attached to the pivot unit, comprising a clamping attachment on one end configured to retain a section of the frame on another end, a ski attachment terminating each adjacent member, a pivot unit, comprising at two horizontal pivot bars pivotally connecting the adjacent members at its ends, and pivotally connected to the mount at a midpoint, wherein the one or more horizontal pivot bars move the adjacent members interdependently, and wherein each member extends from a common pivot unit and terminates at a ski attachment.

A saddle member is attached to at least one of an upper end portion of a first frame member and an upper end portion of a second frame member of a main frame mechanism and remains to be in a state of being attached to at least one of the upper end portion of the first frame member and the upper end portion of the second frame member in a folded mode, a seated driving mode, and a standing driving mode, with locking function of a third lock mechanism.

A saddle member is attached to at least one of an upper end portion of a first frame member and an upper end portion of a second frame member of a main frame mechanism and remains to be in a state of being attached to at least one of the upper end portion of the first frame member and the upper end portion of the second frame member in a folded mode, a seated driving mode, and a standing driving mode, with locking function of a third lock mechanism.