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

New: Take part in the October Giveaway for a Whiskey Tango Foxtrot urban gravel bike from Van Dessel Cycles


Rear derailleur and chain issues
#1
Hello,

Yesterday I installed a shimano chain, duraace rear derailleur, and a 10 speed cassette. The problem I am having is that the chain slips on the tension pulley of the derailleur and won't shift onto the highest cogs on the cassette. The slipping on the tension pulley is in the lower cogs. The middle gears are fine. What could be the problem with the setup?
  Reply
#2
The chain cannot "slip" on the tension pulley, and only contacts it AFTER leaving the cogs. The tension pulley would normally be considered the lower pulley (vs. the top guide pulley) and would have absolutely no effect on shifting in any case.

Make sure you have followed the correct procedures for installation, lubrication and adjustment of all components, including the cable/housing and shifter, and have a Dura-Ace compatible shifter. One cannot depend on videos alone. I would recommend you Google "install (deraiileur/cassette/chain) and look primarily at the links for sheldonbrown.com or parktool.com. Best would be in-person help - a knowledgeable friend, bike co--op or shop.
  Reply
#3
a few more questions:
* did you check the hanger alignment?
* is the chain the correct length?
* is the B-screw properly adjusted?
Nigel
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
What do you like about gravel bikes?
Yesterday 07:28 PM
Western Flyer Restoration
Yesterday 02:07 PM
Bikes on the balcony for winter
Yesterday 01:27 PM
Do Any Electric Bike Allows You to Switc...
10-29-2020 10:36 PM
Looking for a hybrid for neighborhood an...
10-29-2020 08:31 PM
Looking for information
10-29-2020 06:47 PM
The deadliest U.S. counties for cyclists
10-27-2020 08:44 PM
Hello from Maine!
10-27-2020 08:41 PM
How to remove a Dork disc
10-27-2020 07:19 PM
2020 road cycling season
10-27-2020 07:18 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
29 posts
no avatar 2. JoJoJo
9 posts
no avatar 3. Sagan97
8 posts
no avatar 4. Papa Dom
7 posts
no avatar 5. Painkiller
7 posts