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

Reply
 
Thread Tools Search this Thread
Old 08-01-12, 07:46 PM   #1
joeturner
Senior Member
Thread Starter
 
Join Date: Aug 2011
Bikes:
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cassette creak on some cogs

Just this monday I started noticing a fairly loud squeak coming from what I assume is my cassette, but it could be coming from my crank as well (which is odd, because I didn't change anything between sunday and monday). It only happens when I'm in my 3rd, 4th and 5th smallest cogs (why I think it must be from my cassette), which I find peculiar. And it happens when I put the gas on (as in 2 squeaks per revolution of the crank). I have a SRAM OG1090, which I know is supposed to be loud when shifting, but I don't think this is normal behavior. I've adjusted the RD a few times, but still can't get rid of the creak. The way this cassette is made is the largest 7 cogs are one solid block, and the smallest three are separate–maybe this has something to do with it? Any help would be greatly appreciated!
joeturner is offline   Reply With Quote
Old 08-01-12, 07:48 PM   #2
Kimmo
bike whisperer
 
Kimmo's Avatar
 
Join Date: Dec 2009
Location: Melbourne, Oz
Bikes: velospace.org/viewcluster?c=873
Posts: 7,115
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Tightened the lockring?
Kimmo is offline   Reply With Quote
Old 08-01-12, 08:25 PM   #3
joeturner
Senior Member
Thread Starter
 
Join Date: Aug 2011
Bikes:
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ah actually you might be right. I just checked my cassette and it turns out the smallest two cogs are not connected, which makes sense with a loose lockring. Those outer 3 cogs would produce the most torque (being furthest from the base of the cassette), so if the cassette was a bit loose, they would be the prime suspects for the squeak. As it turns out, my cassette wasn't quite at the 40 nm it was supposed to be (maybe more like 15), so hopefully this fixes it! I'll find out tomorrow.
joeturner is offline   Reply With Quote
Reply


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 06:42 AM.