Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Thread Tools Search this Thread
Old 07-28-07, 03:59 PM   #1
Senior Member
Thread Starter
mike's Avatar
Join Date: Jul 2000
Location: Snowy midwest
Posts: 5,392
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Pic of why your derailure might not be working 100%

I was working on a rear derailure of a Trek Mountain Track mountian bike (1980's?).

I could get the bike into low gear, but had a hard time coaxing it into high gear.

After cleaning and oiling and working the derailure, I finally decided to check the cables.

Ugh! Check this out. This was the loop by the rear stays just near the derailure. Not only was the cable rusted, but it was frayed to the extent I am surprised I could make it move at all inside the cable housings.

Even a little corrosion can cause problems, but in some extreme cases, you get THIS. Here is evidence that you have to check the derailure cables once in awhile.
Attached Images
File Type: jpg frayed cable.jpg (11.7 KB, 32 views)
mike is offline   Reply With Quote
Old 07-28-07, 04:29 PM   #2
DevilsGT2's Avatar
Join Date: Sep 2006
Location: SF
Bikes: One of the first Aluminum Rockhoppers to come with front suspension.
Posts: 624
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A similar thing happened to me, I was putting new housings on my cable, and one strand from the cable got caught in the housings. I forced the cable through, and the one strand bunched up at one spot in the housing.

Low and behold, shifting started to go haywire. Pulled the cable out and recognized my mistake.
DevilsGT2 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 07:32 AM.

  • Ask a Question
    get answers from real people!
Click to start entering your question.