Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the Newton-Rider International Giveaway for a Foldable Bicycle Helmet


Rear Derailleur
#1
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.
  Reply
#2
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
Ride hard or ride home alone!
  Reply
#3
(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.
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Road bike brakes upgrades
Today 12:39 PM
Newton-Rider, a helmet like no other
01-15-2021 05:01 PM
Colnago R41 Handlebar
01-14-2021 10:24 PM
How much do you bike per year?
01-14-2021 04:50 PM
BMX Shoes
01-14-2021 04:42 PM
Colnago C64 setup advice
01-14-2021 04:26 PM
Do you wave to other cyclists?
01-14-2021 01:12 PM
1983 Trek 720
01-13-2021 10:30 AM
Riding all day on the winter solstice
01-13-2021 07:43 AM
NewBikeShopper (intro & opinion request)
01-12-2021 09:11 PM

[-]
Top 5 Posters This Month
no avatar 1. Criminal
21 posts
no avatar 2. Zviedrs
6 posts
no avatar 3. RollOn
5 posts
no avatar 4. Yevhen
5 posts
no avatar 5. Nikko
4 posts