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

New: Take part in the May Giveaway for a Road Electric Bike Hurricane from KBO


Tiagra Rear Derailleur Won't Shift
#1
So I have a trek 1000SL that I'm trying to get tuned up for ride the rockies this year. It has Sora triple shifters and everything else tiagra (9speed), and the rear derailleur won't shift up or down. When I use the shifter, it still gives and takes tension from the cable, which makes me think it must be a derailleur issue and not a shifter issue. Would getting new cables/housing fix this or do I need a new RD or a whole new gruppo?
  Reply
#2
Insufficient information to provide an answer.

Did it use to work?

Remove your rear wheel, now try shifting the RD - does it move?
Disconnect the RD cable, now manually push the RD - does it move?
Nigel
  Reply
#3
Check the cables for kinks, fraying, etc. Also make sure the clamping bolt is tightened at the RD.
Also (as Nigel suggested) : Does the RD move if you loosen the cable and push it by hand?
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Have you Ever Tried an Electric Bike?
Today 12:17 AM
SunTour Freewheel "Perfect" model
Yesterday 11:48 PM
1994 Scwinn Crisscross
Yesterday 06:37 PM
Which gravel bike saddle do you suggest?
Yesterday 05:40 PM
2021 Pro Road Cycling
Yesterday 05:39 PM
Looking for a fixed gear bike under $300
Yesterday 05:36 PM
Biking in the rain
05-14-2021 09:02 AM
COPPI "DALLA LIBERA" 60s FRAME SET
05-14-2021 01:07 AM
COPPI "DALLA LIBERA" 60s FRAME SET
05-14-2021 12:51 AM
2018 Specialized Stumpjumper Comp Alloy ...
05-12-2021 01:06 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
25 posts
no avatar 2. ChaseCal
7 posts
no avatar 3. Nikko
7 posts
no avatar 4. Papa Dom
4 posts
no avatar 5. ManBearPig
4 posts