A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

An electric motorcycle in which a driving force is transmitted to a wheel by connection with less waste. The electric motorcycle is one in which a battery is disposed in a position behind a handle and in front of a seat. A driving motor is located below the seat, and a lower part of a swing arm is supported by an attachment section provided in a pivot plate, a drive shaft that transmits a driving force output from the driving motor to a wheel being supported by the swing arm.

The flip-pivot bicycle is a collapsible bicycle, that can be folded by a new method, and belongs into the class of the bicycles foldable about two or more axes. The flip-pivot bicycle consists of a driving-frame-segment (1) comprising the driving-wheel (7), a steering-frame-segment (3), comprising the steering-wheel (6), and a central-frame-segment (2), which connects them. The central-frame-segment (2) and the driving-frame-segment (1) is connected by and can pivot above a pivot-axis (4), which pivot-axis (4) is perpendicular to the plane of the parallelly positioned wheels (6, 7), or forms an angle of maximum 45 degree with this perpendicular. The central-frame-segment (2) and the steering-frame-segment (3) is connected and can pivot by a flip-axis (5), which flip-axis (5) is in the plane of the parallelly positioned wheels (6, 7), or is parallel to this plane, or forms an angle of maximum 45 degree with this plane. The function of the flip-axis (5) is to relocate the wheel distant to the pivot-axis (4) as close (or approximately as close) to the pivot-axis (4) as the other wheel is. Thereby flipping the driving-frame-segment (1) on the central-frame-segment (2) by the flip-axis (5), and offset the original planes of the wheels (6, 7) in the meantime, the two wheels (6, 7) can be folded next to each-other. Beyond the above, the flip-pivot bicycle can be equipped with an extra frame-brace; with central-suspension; with crank-anus with releasable fixing which can be re-fixed also in less than 180 degree to each-other, and/or the with pedals inward; with stem that can be slided into one of the forks or next to it; and with seatpost miming out of the plane of the driving wheel.

The flip-pivot bicycle is a collapsible bicycle, that can be folded by a new method, and belongs into the class of the bicycles foldable about two or more axes. The flip-pivot bicycle consists of a driving-frame-segment (1) comprising the driving-wheel (7), a steering-frame-segment (3), comprising the steering-wheel (6), and a central-frame-segment (2), which connects them. The central-frame-segment (2) and the driving-frame-segment (1) is connected by and can pivot above a pivot-axis (4), which pivot-axis (4) is perpendicular to the plane of the parallelly positioned wheels (6, 7), or forms an angle of maximum 45 degree with this perpendicular. The central-frame-segment (2) and the steering-frame-segment (3) is connected and can pivot by a flip-axis (5), which flip-axis (5) is in the plane of the parallelly positioned wheels (6, 7), or is parallel to this plane, or forms an angle of maximum 45 degree with this plane. The function of the flip-axis (5) is to relocate the wheel distant to the pivot-axis (4) as close (or approximately as close) to the pivot-axis (4) as the other wheel is. Thereby flipping the driving-frame-segment (1) on the central-frame-segment (2) by the flip-axis (5), and offset the original planes of the wheels (6, 7) in the meantime, the two wheels (6, 7) can be folded next to each-other. Beyond the above, the flip-pivot bicycle can be equipped with an extra frame-brace; with central-suspension; with crank-anus with releasable fixing which can be re-fixed also in less than 180 degree to each-other, and/or the with pedals inward; with stem that can be slided into one of the forks or next to it; and with seatpost miming out of the plane of the driving wheel.

A green bike comprises a frame, two wheels, a first internal-gear module and a second internal-gear module and a transmission element. The frame has a pedal, a front supporting unit, a rear supporting unit, and a seat unit. The two wheels are attached to the front supporting unit and the rear supporting unit, respectively. The transmission element is disposed in the frame or a tube shield linking to the frame. The first internal-gear module and the second internal-gear module are coupled with the pedal and at least one of the wheels. The transmission element links the first and the second internal-gear modules for delivering power to the at least one of the wheels.

A green bike comprises a frame, two wheels, a first internal-gear module and a second internal-gear module and a transmission element. The frame has a pedal, a front supporting unit, a rear supporting unit, and a seat unit. The two wheels are attached to the front supporting unit and the rear supporting unit, respectively. The transmission element is disposed in the frame or a tube shield linking to the frame. The first internal-gear module and the second internal-gear module are coupled with the pedal and at least one of the wheels. The transmission element links the first and the second internal-gear modules for delivering power to the at least one of the wheels.

A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

A dual powered propulsion system for use with a human powered vehicle is provided. The system includes a connecting rod with a front end operatively coupled to yoke-connected forearm bars. The system also includes a splitter coupled to a rear end of the connecting rod, wherein the splitter is coupled to a first rack and a second rack that operate with a first and second pinion gear to turn a crank axle. This system supplies rotational power to the crank axle in a single rotational direction as the connecting rod is oscillated up and down and back and forth. Even though a solid connecting rod is used to transfer power from the oscillating forearm bars to the crank axle, the vehicle is steerable to the right or left as a result of the use of a carriage, on rollers, and a turning track operatively connected to the forearm bars.

A configurable cycle vehicle (10) has an adjustable frame (12) which is formed from a plurality of relatively configurable frame members (26, 28, 30, 32, 34), and which can be separately arranged in a first, upright riding condition, or alternatively in a second, recumbent riding condition. A method of conversion of a cycle vehicle between first and second riding conditions is also provided.