| 摘要 |
A bicycle equipped with an auxiliary hand operated propulsion system that is actuated by the rider by transversely oscillating the handlebar for reciprocating two pistons that in turn generate a pressure in a hydraulic circuit. The pressure is properly routed through a valve (9) and conduits (11, 27) and imparts a rotating motion to a hydraulic motor (12) fitted to the hub of the vehicle front wheel to increase the drive imparted to this latter by the pedals. |
