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

Chain seems to be slipping/jumping

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.

Chain seems to be slipping/jumping

Old 08-13-10, 12:01 PM
  #1  
|3iker
Alfredo Contador
Thread Starter
 
|3iker's Avatar
 
Join Date: Jan 2010
Location: Where everybody knows my name
Posts: 431
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Chain seems to be slipping/jumping

This started to happen this morning on my ride in to work. At the middle cogs, the chain seems to skip and jump. I don't see any worn teeth with the cogs. I am using RD7800.
I am using a 8spd chain with the RD. Should it matter? I never had this problem until this morning.
|3iker is offline  
Old 08-13-10, 12:02 PM
  #2  
John Montgomery
Senior Member
 
John Montgomery's Avatar
 
Join Date: Aug 2010
Location: Upstate NY
Posts: 80

Bikes: Raleigh One Way, Specialized Hard Rock, Schwinn Continental

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
How old is the chain? That's my first guess -
John Montgomery is offline  
Old 08-13-10, 12:06 PM
  #3  
|3iker
Alfredo Contador
Thread Starter
 
|3iker's Avatar
 
Join Date: Jan 2010
Location: Where everybody knows my name
Posts: 431
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
6mth old. ~ 1000km of use.
|3iker is offline  
Old 08-13-10, 12:11 PM
  #4  
10 Wheels
Galveston County Texas
 
10 Wheels's Avatar
 
Join Date: Nov 2007
Location: In The Wind
Posts: 31,952

Bikes: 2010 Catrike Expedition, 02 GTO, 2011 Magnum

Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1021 Post(s)
Liked 526 Times in 266 Posts
Have you cleaned and lubed the chain?
__________________
Fred "The Real Fred"

10 Wheels is offline  
Old 08-13-10, 12:23 PM
  #5  
|3iker
Alfredo Contador
Thread Starter
 
|3iker's Avatar
 
Join Date: Jan 2010
Location: Where everybody knows my name
Posts: 431
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
yes. every 1.5 mths.
|3iker is offline  
Old 08-13-10, 01:21 PM
  #6  
cny-bikeman 
Mechanic/Tourist
 
Join Date: Apr 2007
Location: Syracuse, NY
Posts: 7,510

Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 482 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
It's imprtant to know if the chain is staying entirely on the gear when jumping or is instead starting to shift to another gear. If the former and the bike (not the chain) has a lot of miles on it, and you use those middle gears a lot then they have worn enough to skip (the wear is not always easy to see). It would seem unusual for it to show up suddenly, though, especially after months of using that chain.

If the latter, go through the full process of setting up the rear derailleur, including making sure cables are running smooth and clear. Any kind of misalignment of the derailleur or hanger can also cause "jumping" in some gears and not others.
cny-bikeman is offline  
Old 08-13-10, 02:19 PM
  #7  
|3iker
Alfredo Contador
Thread Starter
 
|3iker's Avatar
 
Join Date: Jan 2010
Location: Where everybody knows my name
Posts: 431
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I think it could be the latter. As I've posted earlier, the bike & chain is not that old.
|3iker is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
breadbin
Bicycle Mechanics
9
04-15-17 04:43 PM
ZManT
Bicycle Mechanics
6
05-25-14 06:47 AM
Roll-Monroe-Co
Bicycle Mechanics
5
06-05-11 04:54 PM
ScrawnyKayaker
Alt Bike Culture
25
06-21-10 11:41 AM
andrewxcastro
Bicycle Mechanics
27
03-05-10 06:33 PM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.