THE PANTHER FRONT AND REAR WHEEL DRIVE BICYCLE
The regular handlebar and front wheel of a bicycle are replaced by a steering head including a pair of hand cranks, and by a sprockets-containing front wheel. The hand cranks are positioned such that the rider s weight center is stabilized unto the cycle s seat, away from his hands. A sprocket mounted unto the hand cranks drive shaft transmits the power from the hand cranks, through a continuous chain, to the front wheel s sprockets. A set of brake cables and bearings prevent the brakes cables from twisting, while rotating the hand cranks. The cycle s seat is provided with a back support. The rider can position the hand cranks in unison or alternatively. The rider can drive the bicycle by simultaneous or independent foot and hand operation. The addition of a set of hand cranks to a regular bicycle enables an increase in the cycle s speed, along with intensified exercise. The hand cranks system can be mounted and unmounted onto any existing bicycle. The hand cranks mechanism exhibits great simplicity, while maintaining safety and very good steering ease.