B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
280/27, 280/28
B60K 1/00 (2006.01)
Patent
CA 2002173
15 ABSTRACT OF THE DISCLOSURE: A hydraulic drive system for bicycle comprises of a drive device set in the bottom bracket of the frame of a bicycle, a driven device fixedly mounted on the freewheel axle of the bicycle, and an hydraulic oil circulating assembly connected therebetween. Through hydraulic drive, a stepless speed control can be achieved and the bicycle can be efficiently driven to move.
Chang Ching-Chiang
Chang Wen-Chou
Chang Wen-Huan
Hsu Tse-Sheng
Chang Ching-Chiang
Chang Wen-Chou
Chang Wen-Huan
Hsu Tse-Sheng
Robic
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