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


Jockey Pulleys
#1
I foolishly did not remove and clean my jockey pulleys (Acera derailleur) one at a time, and see that one has a metal sleeve inside the ring, and one does not. Both bushings seem to be the same length. The metal-sleeved one is slightly thinner. From my reading, it seems that this one is the "top" one (closest to the freewheel/cassette) that because it is thinner, it "wobbles" to make shifting easier. Do I have it right that I put the thinner one on top?
  Reply
#2
Yes, the top pulley should be able to move side to side a tiny bit to help the pulley align under the cogs.
  Reply
#3
Usually, there's a "Centeron" marking on it...
  Reply
#4
Have you got the relevant documents from Shimano's TechDocs site?
Nigel
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Giant reporting profits are 60% down
Today 10:50 AM
Thoughts on tariff effects on the cyclin...
Today 10:30 AM
braking by reversing the pedals
Today 09:00 AM
Post-Ride Nutrition
04-03-2025 02:06 AM
🚴‍♂️ Saddle Up for the Belgian Waffle Ri...
04-03-2025 02:03 AM
Pre Ride Food Intake
04-03-2025 12:14 AM
SAVA Explorer 6061?
04-02-2025 03:31 PM
Zwift v Spin v Wahoo
04-01-2025 05:59 PM
Have you Ever Tried an Electric Bike?
04-01-2025 05:07 PM
Good Morning from SW Ohio
04-01-2025 07:32 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
22 posts
no avatar 2. Flowrider
18 posts
no avatar 3. Jake1
14 posts
no avatar 4. meamoantonio
12 posts
no avatar 5. SPINMAN
9 posts