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

chain jumps/skips, but parts are ok!

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 jumps/skips, but parts are ok!

Old 06-29-08, 04:46 PM
Senior Member
Thread Starter
Join Date: Jun 2008
Location: SW Ohio
Posts: 106

Bikes: 2016 Masi strada vita due, 2019 Kona Dew Plus

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
chain jumps/skips, but parts are ok!

here's the deal: 2005 C'dale Bad Boy, 9 speed.
Lately, and quickly getting worse, the chain jumps under pressure. The chain and cassette have several thousand miles on em, but are not worn out! I get exactly 12", pin/pin when I measure the chain. The tops of the sprocket teeth are square. (I take care of my bikes) It happens in 7th & 8th gears, mostly 8th. (Of course, these are the two I use most often)
What else could it be?
epnnf is offline  
Old 06-29-08, 06:12 PM
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
The valleys are probably worn and elongated.
Old 06-29-08, 07:10 PM
Retro Grouch 
Senior Member
Retro Grouch's Avatar
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 29,298

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

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1160 Post(s)
Liked 31 Times in 23 Posts
That doesn't really sound like a hanger alignment issue to me, but I'd have it checked anyway. In fact, anytime that a rear derailleur doesn't respond to normal tuneing processes, the first thing that I do is check the hanger alignment. Most of the time that fixes it.
Retro Grouch is offline  
Related Topics
Thread Starter
Last Post
Gary Fountain
Classic & Vintage
07-02-11 09:44 PM
02-13-11 01:49 PM
"The 33"-Road Bike Racing
01-13-10 08:15 PM
United Kingdom
08-07-08 04:28 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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.