Bicycle TutorBicycle Tutor

Show off your bike!

Related video tutorials:
How to Adjust Your Front Derailleur How to Adjust Your Front Derailleur
* Now with 3D interactive instructions
Cannot select small front chainring
#1
Hi any help would be appreciated. I cannot get the derailleur to move enough to get the chain onto the small front chainring. It will however go over if I ease the cage with my thumb. I have gone thru the set up video, and am sure I have the height and angle of the cage correct. The stop has been loosened right off to the extent that the cam is now hard onto the pivot assembly i.e. no restriction from the stop screw (see photo - gap between stop screw [nearest frame] and cam). The cable from the index shifter is very slack at this point. There is plenty of tension in the spring that pulls the carriage across, it is the body of the pivot assembly that is stopping the carriage from going across any further, if it wasn't for this I'm sure all would be fine. All other gear selections are OK. There is no damage to the bike that I can see and very little mileage has been done as its a new bike, if fact it has always been like this since purchased - don't ask why it wasn't taken back to the shop (Halfords).

[attachment=759]
Reply
#2
If the cable is slack (disconnect to make sure.) and the stop screw is right out.
Then it's got to be the derailleur itself.
Inspect it for damage or being bent.
Work it a few times and spray with something like WD40. It could be a tight pivot.
Make sure it's not rubbing against the frame
[font=Trebuchet MS]Ride hard or ride home alone![/font]
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Front derailleur can't shift from inner chainring to outer...sometimes Ptero 2 4,895 07-19-2016, 02:15 PM
Last Post: Joe_W
  Front derailleur drags on middle chainring? fionn88 1 4,851 06-09-2016, 08:56 PM
Last Post: DaveM
  Front derailleur/chainring gap py3gemini 4 5,104 01-23-2015, 12:37 AM
Last Post: nfmisso
  Front Derailleur is hitting middle chainring! Cheule 5 9,990 09-25-2010, 06:20 AM
Last Post: JonathanSG
  Can not select big chainring Lightspeed 6 10,554 04-06-2010, 12:05 PM
Last Post: Lightspeed
  Can't Shift From Small Up To Big Ring Realesye 2 13,044 02-25-2010, 01:34 AM
Last Post: Alex Ramon
  Front derailleur springs off big chainring CanadErik 2 6,562 02-24-2010, 07:27 AM
Last Post: Joe_W
  Chain overshifts small ring j beede 1 5,019 01-14-2010, 06:24 AM
Last Post: Alex Ramon
  New BB - can't shift front derailleur onto large chainring gathius 2 8,960 12-29-2009, 05:12 AM
Last Post: KDC1956
  Rear derailler "too small" for new sprocket set eddie_matos 1 9,759 11-01-2009, 07:58 PM
Last Post: cyclerUK

Forum Jump:



ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy / Created by Alex Ramon

feed