A vehicle includes a body having a first part and a second part, which is moveably coupled to the first part. The vehicle further includes a pedal assembly having a first component coupled to the first part and a wheel assembly having a second component coupled to the second part. The vehicle further includes an extendable drive shaft having a first member and a second member. The first member is coupled to the first component and the second member is coupled to the second component. The vehicle further includes a locking mechanism having a locking member coupled to the first part and the second part of the body. The locking member, in an unlocked position, unlocks the second part from the first part to allow the second part to move over the first part, which may cause a change in a length of the extendable drive shaft.

A drive unit includes a decelerator rotatably supported by a housing, the decelerator including a first transmission gear, a second transmission gear having teeth of a smaller number than that of the first transmission gear, and a transmission shaft to transmit a rotation of the first transmission gear to the second transmission gear; and a bearing supporting the first transmission gear in the housing such that the first transmission gear is rotatable. A distance, in a first direction in which the transmission shaft extends in the housing, from a reference plane to teeth of the first transmission gear is less than a distance in the first direction from the reference plane to an innermost portion of the bearing, in which the reference plane passes through an outermost portion of the bearing and is perpendicular to the first direction.

A drive unit includes a decelerator rotatably supported by a housing, the decelerator including a first transmission gear, a second transmission gear having teeth of a smaller number than that of the first transmission gear, and a transmission shaft to transmit a rotation of the first transmission gear to the second transmission gear; and a bearing supporting the first transmission gear in the housing such that the first transmission gear is rotatable. A distance, in a first direction in which the transmission shaft extends in the housing, from a reference plane to teeth of the first transmission gear is less than a distance in the first direction from the reference plane to an innermost portion of the bearing, in which the reference plane passes through an outermost portion of the bearing and is perpendicular to the first direction.

A drive train for a treadle scooter using a locking roller clutch on each side of a drive wheel substantially equalizes drive line pull at actuation pulleys operatively associated with the locking roller clutches as a user pivots a rocker board having its ends attached to ends of the drive line.

A drive train for a treadle scooter using a locking roller clutch on each side of a drive wheel substantially equalizes drive line pull at actuation pulleys operatively associated with the locking roller clutches as a user pivots a rocker board having its ends attached to ends of the drive line.

Tri-Power Exercising device allows a rider to simultaneously, or on demand, exercise virtually all muscle groups in his lower and upper body. The device includes a bicycle frame, pedals, forearm bars, sliding seat, computer and electronic display recommending energy modulation amounts from various muscle groups to optimize physical performance on any given trek. Because riders can exercise virtually all muscle groups at once, they reduce their exercising time, continuously builds muscle tissue throughout their whole body, and exercises their cardiovascular and respiratory systems completely. Riders operate the device by rotating legs on the pedals, rotationally oscillating the forearm bars up and down with their arms and shoulders, and then use core muscles to pull and push the seat back and forth on the slider. Inverted racks, pinion gears, and one-way bearings turn this linear power from the oscillating forearm bars and sliding seat into torque that rotates the crank axle.

A bicycle component is basically provided with a controller, a first connection part and a second connection part. The first connection part is connected to a first transmission path configured to transmit electromagnetic waves. The second connection part is connected to a second transmission path configured to transmit electricity. The controller is configured to establish a communication path with other bicycle components through the first transmission path by communicating with the other bicycle components via the second transmission path.

A bicycle component is basically provided with a controller, a first connection part and a second connection part. The first connection part is connected to a first transmission path configured to transmit electromagnetic waves. The second connection part is connected to a second transmission path configured to transmit electricity. The controller is configured to establish a communication path with other bicycle components through the first transmission path by communicating with the other bicycle components via the second transmission path.

In a drive unit attached to a vehicle-body frame of an electric-motor-assisted bicycle including a one-way clutch including an outer member, an inner member, a plurality of clutch lugs, a plurality of springs, and a plurality of pins. Clutch teeth are located on one of an inner peripheral portion of the outer member and an outer peripheral portion of the inner member. The clutch lugs and the springs are located on the other of the inner peripheral portion and the outer peripheral portion. A number of the clutch lugs is an even number not smaller than four. A number of the clutch teeth is an even number that is not a multiple of the number of the clutch lugs. A number of the springs is half the number of clutch lugs. Each spring exerts a biasing force on two of the clutch lugs that are circumferentially adjacent. Each pin is in contact with one of the springs.

In a drive unit attached to a vehicle-body frame of an electric-motor-assisted bicycle including a one-way clutch including an outer member, an inner member, a plurality of clutch lugs, a plurality of springs, and a plurality of pins. Clutch teeth are located on one of an inner peripheral portion of the outer member and an outer peripheral portion of the inner member. The clutch lugs and the springs are located on the other of the inner peripheral portion and the outer peripheral portion. A number of the clutch lugs is an even number not smaller than four. A number of the clutch teeth is an even number that is not a multiple of the number of the clutch lugs. A number of the springs is half the number of clutch lugs. Each spring exerts a biasing force on two of the clutch lugs that are circumferentially adjacent. Each pin is in contact with one of the springs.