A human-powered vehicle component includes a crankshaft including a rotational center axis and a first coupling portion that allows a crank arm to be coupled and a transmission provided on the crankshaft and including a second coupling portion that allows a sprocket to be coupled. The first coupling portion includes a first positioning portion that determines a first predetermined relative phase position of the crank arm with respect to the crankshaft in a circumferential direction about the rotational center axis. The second coupling portion includes a second positioning portion that determines a second predetermined relative phase position of the sprocket with respect to the crankshaft in the circumferential direction about the rotational center axis.
HUMAN-POWERED VEHICLE COMPONENT
2019-10-10
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |