A foldable vehicle includes a front wheel frame having a front wheel pivotably connected thereto, the front wheel frame having a front circular opening for receiving the front wheel. The vehicle also has a rear wheel frame having a rear wheel pivotably connected thereto, the rear wheel frame having a rear circular opening for receiving the rear wheel. A pivot joint connects the front wheel frame and the rear wheel frame, with the front wheel frame and the rear wheel frame being pivotable against each other via the pivot joint. A front vertical support extends from the front wheel frame and has a handlebar assembly pivotably secured to the front vertical support, and a rear vertical support extends from the rear wheel frame and has a seat assembly removably secured to the rear vertical support.

A stem for a bicycle comprises a body (14), an electrical device such as a power storage means (20), and a connecting means (24, 26). The body (14) has first and second apertures therein. The electrical device is located within the body. The connecting means enables electrical connection through the at least one first aperture, to enable supply of power to the device. The second aperture enables insertion of the device into the body and removal therefrom. A handlebar can be attached to the stem over the second aperture.

A scooter includes a lower body with a first end and a second end, a rear wheel rotatably supported by the first end, an elongated front body with a lower end and an upper end, a guide fixed within the front body extending from the lower end to the upper end, an attachment member pivotably fixed to the second end of the lower body and engaged by the guide, and a front wheel rotatably supported by the lower end.

A scooter includes a lower body with a first end and a second end, a rear wheel rotatably supported by the first end, an elongated front body with a lower end and an upper end, a guide fixed within the front body extending from the lower end to the upper end, an attachment member pivotably fixed to the second end of the lower body and engaged by the guide, and a front wheel rotatably supported by the lower end.

A straddle vehicle of the present invention includes: a vehicle body frame member; a rotatably supporting member supporting a front wheel; a support arm supporting the rotatably supporting member, the support arm extending rearward from the rotatably supporting member; a pair of upper and lower link members pivotally connected to the support arm at two locations on a rear portion of the support arm at least on one side of the vehicle body in a vehicle width direction, the two locations being spaced in the upward-downward direction, the pair of upper and lower link members extending rearward from the support arm, each of the link members having a rear portion pivotally connected to the vehicle body frame member; a handle; and a handle supporting member removably coupled to the vehicle body frame member and supporting the handle.

A straddle vehicle of the present invention includes: a vehicle body frame member; a rotatably supporting member supporting a front wheel; a support arm supporting the rotatably supporting member, the support arm extending rearward from the rotatably supporting member; a pair of upper and lower link members pivotally connected to the support arm at two locations on a rear portion of the support arm at least on one side of the vehicle body in a vehicle width direction, the two locations being spaced in the upward-downward direction, the pair of upper and lower link members extending rearward from the support arm, each of the link members having a rear portion pivotally connected to the vehicle body frame member; a handle; and a handle supporting member removably coupled to the vehicle body frame member and supporting the handle.

The damping device according to the invention includes a pressing member, a shock absorption member and an adjustment member. The shock absorption member is disposed in an accommodation room defined between the pressing member and the handlebar seat. The shock absorption member are arranged in contact with the pressing member and the handlebar seat, so that when a rider is riding a bicycle on an uneven road causing the front fork tube to shake up and down, the invention disclosed herein would absorb the shock force as the pressing member presses against the shock absorbing member. The adjustment member is arranged to extend through the handlebar seat into the pressing member and contact the shock absorption member, so that the strain rate of the damping device can be adjusted by the adjustment member, thereby performing various degrees of shock absorption effects.

The damping device according to the invention includes a pressing member, a shock absorption member and an adjustment member. The shock absorption member is disposed in an accommodation room defined between the pressing member and the handlebar seat. The shock absorption member are arranged in contact with the pressing member and the handlebar seat, so that when a rider is riding a bicycle on an uneven road causing the front fork tube to shake up and down, the invention disclosed herein would absorb the shock force as the pressing member presses against the shock absorbing member. The adjustment member is arranged to extend through the handlebar seat into the pressing member and contact the shock absorption member, so that the strain rate of the damping device can be adjusted by the adjustment member, thereby performing various degrees of shock absorption effects.

A shock absorption device includes first and second assemblies, at least one pivot component and a buffering component. The first assembly is adapted to be connected to a first component of a bicycle and has at least one conical hole. The second assembly is adapted to be connected to a second component of the bicycle. The pivot component is fastened on the second assembly and has a conical portion. The conical portion is inserted into the conical hole such that the first and second assemblies are pivoted to each other. The conical portion is leaned against and fitted on the conical hole. The buffering component is disposed between the first and second assemblies. When the first and second assemblies rotate relatively to each other by taking a central axis of the conical hole as a rotation axis, force between the first and second assemblies is buffered by the buffering component.

The present disclosure relates to terrain-tracking or vehicle suspension systems that include travel at least one of the front or the rear of the vehicle. Various embodiments include a suspension above the vehicle (upper suspension). Embodiments include a suspension or travel in at least one of the upper vehicle (rear and/or front), middle vehicle (rear and/or front), or below vehicle (rear and/or front). Various embodiments included a combination thereof.