Bicycle derailleur with motion resisting apparatus

摘要

A bicycle derailleur apparatus comprises a base member (74) for coupling to a bicycle frame, a movable member (78) coupled for movement relative to the base member (74), a chain guide (86) coupled to the movable member (78) for guiding a chain among a plurality of sprockets in response to movement of the movable member, and a biasing device (110) that provides a biasing force to the chain guide for tensioning the chain, and a movement resisting device has a control element for the application of a signal that causes the movement resisting device to change resistance to movement of the chain guide.