Motorcycle having two driven wheels

Claim 1

A ONE-PASSENGER MOTOR VEHICLE FOR OVERLAND TRAVEL IN MOUNTAINOUS AREAS, WHICH COMPRISES A REAR FRAME HAVING AN UPPER GENERALLY-HORIZONTAL HOLLOW LONGITUDINAL COMPONENT, FRAME MEANS CONNECTED TO SAID UPPER COMPONENT TO SUPPORT A POWER UNIT IMMEDIATELY THEREBENEATH AND TO ROTATABLY MOUNT A REAR WHEEL AT THE REAR THEREOF, SEAT MOUNTED ABOVE THE REAR PORTION OF SAID UPPER COMPONENT, A FRONT FRAME INCLUDING HANDLE BAR ELEMENTS EXTENDING DOWNWARDLY FOR PIVOTAL SUPPORT OF A FRONT WHEEL, A HOLLOW FRONT FRAME COMPONENT CONNECTED TO SAID HANDLE BAR ELEMENTS AND EXTENDING FORWARDLY IN GENERAL ALIGNMENT WITH SAID UPPER COMPONENT OF SAID REAR FRAME, PIVOT MEANS TO PIVOTALLY CONNECT SAID FRONT FRAME TO SAID REAR FRAME BETWEEN SAID HOLLOW COMPONENTS THEREOF TO THEREBY PERMIT STEERING MOVEMENT OF SAID FRONT FRAME RELATIVE TO SAID REAR FRAME, FRONT AND REAR WHEELS ROTATABLY MOUNTED ON SAID FRAMES AND INCORPORATING LARGE-SIZE LIGHT-WEIGHT TIRES, FRONT GEAR MEANS MOUNTING AT THE FORWARD END OF THE HOLLOW COMPONENT OF SAID FRONT FRAME AND INCORPORATING RIGHT-ANGLE BEVEL GEARS, CHAIN DRIVE MEANS CONNECTING SAID FRONT GEAR MEANS TO A LARGE SPROCKET ON SAID FRONT WHEEL, REAR GEAR MEANS MOUNTED AT THE REAR END OF SAID UPPER COMPONENT OF SAID REAR FRAME AND INCORPORATING RIGHT-ANGLE BEVEL GEARS, FRONT AND REAR SHAFTS RESPECTIVELY CONNECTED TO SAID FRONT AND REAR GEAR MEANS AND EXTENDING