Rear Derailleur

[Bob K Denver]

Please help me understand the rear derailleur. Does it contain one spring or two? Both the cage and the pulley are "spring loaded", I am trying to understand how this works. Thank you very much for answering.

[cyclerUK]

There are 3 springs in a rear derailleur.
One in the cage pivot.
One at the mounting bolt. ("B" axle)
One in between the parallelogram.

http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/RD/EV-RD-M511-2500_v1_m56577569830609143.pdf

http://www.parktool.com/repair/readhowto.asp?id=76

[Bob K Denver]

(05-12-2010, 11:42 AM)cyclerUK Wrote:  There are 3 springs in a rear derailleur.
One in the cage pivot.
One at the mounting bolt. ("B" axle)
One in between the parallelogram.

http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/RD/EV-RD-M511-2500_v1_m56577569830609143.pdf

http://www.parktool.com/repair/readhowto.asp?id=76

Thank you very much.