An electric balance bike includes an actuating assembly, a battery, and a controller. The actuating assembly includes an actuator located below an intermediate section of a bike frame, a driving member located at an axle of a rear wheel, and a driving belt that is wrapped around the actuator and the driving member. The battery is detachably connected to the actuating assembly. The power abnormality response system is arranged in the controller, and the power abnormality response system includes a determination component, detection components, and a warning component, the determination component is respectively connected to the detection components and the warning component, the detection components respectively detect running statuses of the actuator and the battery and output detection values, the determination component receives the detection values and determines whether the detection values are abnormal or not to output different control signals.

A bicycle chain comprises a first inner link plate and a second inner link plate. The first inner link plate comprises a first inner-link end portion, a second inner-link end portion, and a first inner-link intermediate portion. The second inner link plate comprises a third inner-link end portion, a fourth inner-link end portion, and a second inner-link intermediate portion. A first inner-link end edge has a first chamfer extending about the first inner-link center axis such that a part of the first chamfer is disposed in a first circumferential area defined from a first inner-link longitudinal centerline to a first reference line when viewed in an axial direction of the first inner-link center axis. The first circumferential area is smaller than 14 degrees.

A bicycle chain comprises a first inner link plate and a second inner link plate. The first inner link plate comprises a first inner-link end portion, a second inner-link end portion, and a first inner-link intermediate portion. The second inner link plate comprises a third inner-link end portion, a fourth inner-link end portion, and a second inner-link intermediate portion. A first inner-link end edge has a first chamfer extending about the first inner-link center axis such that a part of the first chamfer is disposed in a first circumferential area defined from a first inner-link longitudinal centerline to a first reference line when viewed in an axial direction of the first inner-link center axis. The first circumferential area is smaller than 14 degrees.

A bicycle chain comprises a first outer link plate. The first outer link plate comprises a first outer-link end portion, a second outer-link end portion, a first outer-link intermediate portion, and a first outer-link longitudinal centerline. The first outer-link end portion, the second outer-link end portion and the first outer-link intermediate portion define a first outer-link outer peripheral edge. The first outer-link outer peripheral edge comprises a first outer-link end edge, a second outer-link end edge, and a pair of first outer-link intermediate edges. A first radial distance is defined from a first outer-link center axis to the first outer-link end edge in a perpendicular direction. A minimum distance is defined between the pair of first outer-link intermediate edges in the perpendicular direction. The minimum distance is smaller than 200% of the first radial distance and is equal to or larger than 5 mm.

The teachings provided herein are generally directed to compact vehicle drive mechanisms that can be used in the design of a foldable, carry-on vehicle. The compact drive mechanisms presented herein, for example, have contributed to the advent of the compact, carry-on bicycles set-forth in the teachings which include drive-and-steering units and drive-and-chassis units.

The teachings provided herein are generally directed to compact vehicle drive mechanisms that can be used in the design of a foldable, carry-on vehicle. The compact drive mechanisms presented herein, for example, have contributed to the advent of the compact, carry-on bicycles set-forth in the teachings which include drive-and-steering units and drive-and-chassis units.

An outer link plate for a bicycle chain is provided. The outer link plate has an interior surface configured to face another counterpart outer link plate in an assembled state and an exterior surface opposite to the interior surface. The outer link plate has an outer perimeter, and first and second end portions including respective first and second openings each having corresponding parallel center axes. An intermediate portion is provided interconnecting the first end portion and the second end portion. The intermediate portion has an axially recessed portion formed along the outer perimeter on the exterior surface, the intermediate portion having a pair of intermediate edges formed along the outer perimeter, the axially recessed portion being formed on at least one of the intermediate edges and including a chamfered portion connecting the at least one of the intermediate edges to the exterior surface of the outer link plate.

An outer link plate for a bicycle chain is provided. The outer link plate has an interior surface configured to face another counterpart outer link plate in an assembled state and an exterior surface opposite to the interior surface. The outer link plate has an outer perimeter, and first and second end portions including respective first and second openings each having corresponding parallel center axes. An intermediate portion is provided interconnecting the first end portion and the second end portion. The intermediate portion has an axially recessed portion formed along the outer perimeter on the exterior surface, the intermediate portion having a pair of intermediate edges formed along the outer perimeter, the axially recessed portion being formed on at least one of the intermediate edges and including a chamfered portion connecting the at least one of the intermediate edges to the exterior surface of the outer link plate.

An all limb powered and steered front wheel drive land vehicle comprises a seat (133), a front wheel (115), a rear wheel (155), a front drive component (66) and a frame (1) wherein; the seat (133) and a rear wheel (155) are mounted on a rear portion of the frame (1); wherein the front wheel (115) and front drive component (66) are mounted on a front portion of the frame (1); wherein the front drive component (66) comprises a drive mechanism (61) for driving the front wheel (115) and a connecting rod (23)comprising two hand grips for driving the drive mechanism (61) and a lever (31) comprising two foot pegs for driving the connecting rod (23) and a fulcrum (105) mounting the lever (31) to the frame (1). Employing all four limbs of a comfortably seated rider for power and steering, this high performance bicycle converts into a tricycle by removing the rear wheel (155) and replacing it with an axle (192) and a left rear wheel (190) and a right rear wheel (191).

An all limb powered and steered front wheel drive land vehicle comprises a seat (133), a front wheel (115), a rear wheel (155), a front drive component (66) and a frame (1) wherein; the seat (133) and a rear wheel (155) are mounted on a rear portion of the frame (1); wherein the front wheel (115) and front drive component (66) are mounted on a front portion of the frame (1); wherein the front drive component (66) comprises a drive mechanism (61) for driving the front wheel (115) and a connecting rod (23)comprising two hand grips for driving the drive mechanism (61) and a lever (31) comprising two foot pegs for driving the connecting rod (23) and a fulcrum (105) mounting the lever (31) to the frame (1). Employing all four limbs of a comfortably seated rider for power and steering, this high performance bicycle converts into a tricycle by removing the rear wheel (155) and replacing it with an axle (192) and a left rear wheel (190) and a right rear wheel (191).