Bicycle TutorBicycle Tutor

Show off your bike!

Post Reply 

Intermittent trouble with rear gear shifting

Related video tutorials:
How to Adjust Your Front Derailleur How to Adjust Your Front Derailleur
* Now with 3D interactive instructions
Author Message
imaytag Offline
New Member


Posts: 2
Joined: May 2014
Post: #1
Intermittent trouble with rear gear shifting
Every now and then something strange will happen to my bike. I won't be able to shift up from 3 to 4 on the rear gears for a day or two. I can shift freely between 1 and 3 and if I somehow end up in 4 I can shift freely between 4 and 7. But then if I shift down from 4 to 3 (which I can do no problem) I cannot shift back up from 3 to 4.

Whenever this is going on the lever I press with my thumb does not click like it does when shifting through other gears and the gear indicator either remains on 3 or seems stuck halfway between 3 and 4. The derailleur does not move and it doesn't sound like it's trying to shift (no clicking sound or anything). The cable twitches a little when I press the lever but not as much as it does when shifting through other gears.

As I said the problem is intermittent and it will come and go, seemingly without warning. Does this sound like the kind of problem I might be able to fix myself or should I get it looked at? Any advice would be appreciated!

P.S: It's a couple years old and was cheap to begin with (I think I paid about 250 for it)
May 18, 2014 07:50 AM
Find all posts by this user Quote this message in a reply
nfmisso Offline
Veteran Member

San Jose, CA
Posts: 2,377
Joined: Jul 2010
Post: #2
RE: Intermittent trouble with rear gear shifting
Sounds like a shifter issue. Trigger shifters and brifters require periodic flushing with solvent and re-lubricating.

Take a look at: http://bicycletutor.com/rapid-fire-shifters/

Nigel
May 18, 2014 09:29 AM
Find all posts by this user Quote this message in a reply
imaytag Offline
New Member


Posts: 2
Joined: May 2014
Post: #3
RE: Intermittent trouble with rear gear shifting
Thanks for the link! My attempts to open up my shifter have been thwarted for now by a badly stripped screw, and while I was tinkering around the problem fixed itself, though no doubt it will appear again in a few days. I'll see what I can do about the stripped screw once the problem reappears. If I run into trouble after that I'll return here.

Thanks again!
May 18, 2014 11:41 AM
Find all posts by this user Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Buying a new rear derailleur. la569 12 1,410 Oct 29, 2014 08:59 AM
Last Post: nfmisso
  Rear Shifting Problems! cricket0140 5 689 Oct 19, 2014 06:08 AM
Last Post: painkiller
  Question about gear changing daniel1988 3 624 Oct 15, 2014 10:50 AM
Last Post: daniel1988
  What is wrong with my bike's gear shifting? Marlogism 4 1,395 Oct 13, 2014 05:21 PM
Last Post: Old Retired Petty Officer
  Front Derailleur problem/whole shifting system benonidoni1 9 1,336 Sep 7, 2014 07:19 PM
Last Post: cny-man
  I can only use the highest 5 gears on my 8spd rear cog bianchi29er 21 10,982 Sep 1, 2014 02:35 AM
Last Post: wikey
  Rear derailer refuses to travel from top to low gear bike adventurers 6 1,179 Aug 28, 2014 11:07 AM
Last Post: bike adventurers
  13/23 to 14/28 rear derailleur question Jamin 6 1,028 Aug 28, 2014 01:51 AM
Last Post: Jamin
  Road bike gears not shifting at all tornviper 2 1,002 Aug 24, 2014 12:23 PM
Last Post: tornviper
  Gear shift lever replacement. packman126 2 816 Aug 22, 2014 05:20 PM
Last Post: packman126

Forum Jump:


RSS Forum RSS Feeds / Powered by MyBB

ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy

feed