The chain drive system is constituted by two separate drive chains (21 and 22), each of which is mounted on one parasitic chain wheel (24 or 25) and on one of the drive wheels (19 or 20). Each of the drive chains (21 and 22) is hinged to a movable axle (26 or 27) mounted to the front of the drive pedal (5).
PEDAL SCOOTER
2020-07-16
Patent
Elektronische Ressource
Englisch