VSBD (Vertical Shaft Bicycle Drive)
grabcad
I HAVEN'T SEEN THIS ANYWHERE, BUT IT SEEMS THERE SHOULD BE ONE OUT THERE. WITH MY DESIGN YOU CAN STOP AND SIMPLY CHANGE ONE GEAR TO CHANGE RATIO. I.E. GET TO A HILL THAT IS TOO STEEP FOR YOUR RATIO, STOP 5 MINUTES AND BE READY FOR THE HILL. An apparatus for conversion or manufactured in place on bicycle to drive rear wheel with electric or gas driven centrifugal clutched shaft being vertical and motor or engine mounted over rear wheel with changeable small round gear for changing ratio of drive to driven gear. Flat driven gear, with teeth protruding out one side to round small gear on vertical shaft with side gear teeth on the maximum diameter of inside rear wheel rim, transmitting power through being clamped on the spoke nuts.
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