Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Shimano Altus C50 rear adjustment

Notices
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.

Shimano Altus C50 rear adjustment

Old 04-01-07, 08:19 AM
  #1  
Newbie
Thread Starter
 
Join Date: Apr 2007
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Shimano Altus C50 rear adjustment

I have read the forum and the suggestion was that the cable needed tightening.
The cable has been tightened, but the trigger simply does not fire and I am stck in high gear.
If I could figure out how the front lever does what it does, I would adjust it.
However, cover is off and I do not see what is wrong.
Ideas???
Thanks,
Kim F is offline  
Old 04-01-07, 08:36 AM
  #2  
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
 
Stacey's Avatar
 
Join Date: Dec 2002
Posts: 9,161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Post this in the Mechanics forum. I'm sure the guys there could be of service.
Stacey is offline  
Old 04-01-07, 04:22 PM
  #3  
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 13,822

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1774 Post(s)
Liked 1,230 Times in 851 Posts
Drench the mechanism with something like WD-40 (or similar) and hope!
Bill Kapaun is offline  
Old 04-01-07, 05:19 PM
  #4  
fender bender
 
tool boy's Avatar
 
Join Date: Nov 2006
Location: St Paul, MN
Posts: 67
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
This is VERY common for shifters from around '95 or so. Grease and dirt clog the shifting mechanism, take spray lube and shoot it into every opening you see until it drips out, and I mean a lot. Make sure the cable is disconnected and start shifting, and I mean a lot. Keep this up until hopefully things free up. A good bike shop can fix this for you.
tool boy is offline  
Old 04-01-07, 05:19 PM
  #5  
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,225

Bikes: Catrike 559 I own some others but they don't get ridden very much.

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1572 Post(s)
Liked 642 Times in 363 Posts
Disconnect the shift cable from the derailleur. Then hold onto the shift cable with your fingers and try to cycle the shifter in both directions.

If you can feel cable movement with each shift, that's good. Cycle the shifter into it's highest (smallest cog) position, reconnect the cable and do your final derailleur adjustment.

If the shifter doesn't want to click into the other gear positions, you have a bad shifter. You can try to make it work by spraying some WD40 into the innerds and blow it out with a blast of compressed air. For no more than an Altus shifter costs, however, I'd just buy a new one and bolt it on. It'll come with a new shift cable already installed too.
Retro Grouch is offline  

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.