A bicycle includes a computing device including a processor and a memory. The processor is programmed to communicate with a user input device of a vehicle when the bicycle is docked to the vehicle. The processor is programmed to communicate with a mobile device when the bicycle is undocked from the vehicle.

Foldable electrical vehicles and related charging infrastructure are described. The foldable electrical vehicle generally includes three structural members (front and rear wheel-bearing structural members and a seat-bearing structural member) that are pivotally interconnected along their lengths such that they may be pivoted between a closed position wherein the three structural members are disposed roughly parallel to each other in a compact folded configuration, and an open riding configuration wherein an angular relation is formed between the structural members. The rear wheel-bearing structural member may comprise one or more foldable wheels pivotably interconnected thereto.

A mobility device can have a frame, a pair of rear wheels, and one or more casters. The mobility device can further comprise a stem having handlebars at a first end and a front wheel at a second end. The stem can be selectively positioned relative to the frame between a first position, in which the front wheel and the rear wheels engage the ground, and a second position, in which the rear wheel and the caster(s) engage the ground.

A bicycle includes a frame including first and second segments pivotable relative to each other between a folded position and an unfolded position. A magnet is fixed relative to the first segment. An electromagnet is fixed relative to the second segment and disposed in a magnetic field of the magnet when the frame is in the folded position. A controller is configured to power the electromagnet to repel the magnet to unfold the frame.

A bicycle includes a frame including first and second segments pivotable relative to each other between a folded position and an unfolded position. A magnet is fixed relative to the first segment. An electromagnet is fixed relative to the second segment and disposed in a magnetic field of the magnet when the frame is in the folded position. A controller is configured to power the electromagnet to repel the magnet to unfold the frame.

An electric bicycle includes a crank, a driving gear and a driven gear spaced from each other, and a belt engaged with the driving gear and the driven gear. An electric motor is coupled to the driving gear. A freewheel is disposed between the crank and the driving gear. At least a portion of the motor is concentric about the freewheel.

A bicycle includes a handlebar and a vibration generator supported on the handlebar. A sensor is configured to detect an overcoming vehicle. A controller is configured to activate the vibration generator when the sensor detects an overcoming vehicle.

A bicycle includes a frame and a seat post removably engaged with the frame. A light source is supported by the seat post. A power source is supported by the seat post. A switch is disposed between the light source and the power source.

A foldable bicycle includes a main frame, a front frame, a swingable middle frame, and a rear strut. The main frame includes a front casing, a middle pivoting member, and a rear pivoting member. The front frame is inserted into the front casing. The swingable middle frame includes an upper section, a middle section pivotally connected with the middle pivoting member, and a lower section including a guiding groove. The guiding groove includes first and second groove ends. The distance between the first groove end and the middle pivoting member is greater than that between the second groove end and the middle pivoting member. The rear strut includes a first end pivotally connected to the rear pivoting member and a second end connected to a slider. The slider is slidably received in the guiding groove and capable of being selectively moved between the first and second groove ends.

A portable conveyance has a deck, a front drive wheel proximately disposed to a first end of the deck and a rear drive wheel attached proximate to a second end of the deck. A guide roller assembly attached proximate to the rear drive wheel. The guide roller assembly has a first rotational axis and the rear drive wheel rotates about a second rotational axis different from the first rotational axis and parallel to the first rotational axis, such that the guide roller assembly is not in contact with a substantially flat surface when the first and rear drive wheels are in contact with the substantially flat surface, and the guide roller assembly is in rotational contact with the surface when the deck is lifted into a towing position.