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A recumbent tricycle which includes a propulsion system which includes a combination of foot and arm power for propulsion. Pedals are operated with the rider's legs. Handles are also connected to the drive mechanism, with the handles pulled back and pushed forward to add to propulsive power. The han

A recumbent tricycle which includes a propulsion system which includes a combination of foot and arm power for propulsion. Pedals are operated with the rider's legs. Handles are also connected to the drive mechanism, with the handles pulled back and pushed forward to add to propulsive power. The handles are also connected through a tie rod arrangement to the front wheels such that the wheels may be turned so that the vehicle can be steered by moving the handles toward one side or the other. Preferably, two large front wheels similar to conventional bicycle wheels are provided in front, with a single smaller diameter but wider driven rear wheel. The rear wheel is mounted on a sub-frame pivotally secured to the vehicle frame and supported on a shock absorber. Brake and gear change mechanism controllers are mounted on the handles.

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A recumbent tricycle which includes a propulsion system which includes a combination of foot and arm power for propulsion. Pedals are operated with the rider's legs. Handles are also connected to the drive mechanism, with the handles pulled back and pushed forward to add to propulsive power. The han

A recumbent tricycle which includes a propulsion system which includes a combination of foot and arm power for propulsion. Pedals are operated with the rider's legs. Handles are also connected to the drive mechanism, with the handles pulled back and pushed forward to add to propulsive power. The handles are also connected through a tie rod arrangement to the front wheels such that the wheels may be turned so that the vehicle can be steered by moving the handles toward one side or the other. Preferably, two large front wheels similar to conventional bicycle wheels are provided in front, with a single smaller diameter but wider driven rear wheel. The rear wheel is mounted on a sub-frame pivotally secured to the vehicle frame and supported on a shock absorber. Brake and gear change mechanism controllers are mounted on the handles. apparatus for transmitting propulsion to a vehicle having a wheel having first and second spokes, comprising: a drive hub having first and second edges, an inner wall, an outer wall, a diameter, a circumference, and a width, said first edge of said drive hub having formed laterally therein a plurality of spoke slots, each said spoke slots having a width, each of said spoke slots spaced and situated so as to receive a single spoke therein, respectively, each of said spoke slots having situated therein retaining means for removably locking said drive hub to said wheel, said retaining means comprising a notch formed in each of said spoke slots adapted to snap about and thereby engage and removably lock a spoke situated in said spoke slot, while engaging and removably retaining said drive hub to said wheel; wherein each of said spoke slots has a length, and wherein each of said spoke slots has formed therein a plurality of notches for receiving and engaging a spoke along the length of said each of said spoke slots. 7. The apparatus of claim 6, wherein said retaining means further comprises a ridge situated adjacent to said notch, said ridge having an amplitude narrowing the width of each of said spoke slots. 8. The apparatus of claim 7, wherein said drive hub has formed along its outer wail a belt track for receiving a drive belt from a motor. 9. The apparatus of claim 8, wherein said hub has formed therein a space (100) between each of said spoke slots, said space configured to allow the passage of a spoke therethrough such that said spoke does not contact said hub.