DERAGLIATORE POSTERIORE PER BICICLETTA.

摘要

The derailleur body is swingably supported to a fixing member through a first horizontal shaft and chain guide is swingably supported to a movable member at the derailleur body through a second horizontal shaft. A first spring and a second spring balance with each other to set a guide sprocket of the chain guide in position with respect to a desired one of multistage chain gears. A stopper plate is rotatably supported to and first horizontal shaft a retains one end of the first spring. The stopper plate includes an adjusting means which changes the position of the stopper plate with respect to an abutting projection at the fixing member to thereby adjust a twist angle of the first spring.