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 02-21-09, 03:08 PM   #1
kwrides
Senior Member
Thread Starter
 
kwrides's Avatar
 
Join Date: Nov 2006
Location: Houston, TX
Bikes: 2007 Orbea Onix, 2007 Windsor The Hour, 2008 Kona Jake
Posts: 3,198
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Strange squealing when I stop pedaling

Hi,

I recently bought a new bike and the shop switched all of my 2-year old Shimano Ultegra components and FSA SL-K cranks over to a new frame (not sure if this is relevant). I ride 2 year old Mavic Ksyrium ES's.

When I ride, I occasionally get a really loud squealing noise that seems to only happen when I stop pedaling. A good example is that while riding up hill, it NEVER happens, but then going back down hill it seems to start squealing when I coast. As soon as I pedal, the noise disappears. It doesn't happen every time I coast, but does happen quite frequently. It's tough to describe, but it is a very loud squeal. It's not a creak, or a small squeak, and it never happens while pedaling.

My brake position looks fine. I just had the bottom bracket re-sealed, but the noise is still there.

Any ideas?
kwrides is offline   Reply With Quote
Old 02-21-09, 05:34 PM   #2
Squeazel
Luddite
 
Join Date: Jan 2007
Location: Portland, OR
Bikes: Univega Gran Turismo, Cannondale Synapse, Bianchi Aquiletta Folder
Posts: 276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like the freehub. Try getting it to make the noise while freewheeling on a bike stand, and listen to where it comes from. I bet it's the back wheel. I think the Mavic freehubs can be rebuilt, but I know they can be replaced. Work on the wheel bearings while you're in there, too.
Squeazel is offline   Reply With Quote
Old 02-22-09, 10:19 AM   #3
kwrides
Senior Member
Thread Starter
 
kwrides's Avatar
 
Join Date: Nov 2006
Location: Houston, TX
Bikes: 2007 Orbea Onix, 2007 Windsor The Hour, 2008 Kona Jake
Posts: 3,198
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for the input. I think you were right. I couldn't duplicate it on a stand (it may have something to do with my weight on it too), but I did immediately notice that when I let go of my pedal, the cranks continued to rotate. So, I swapped out my rear wheel and had a 40 mile squeal free ride today. I'm going to re-build the rear hub on the ES and see what happens.
kwrides is offline   Reply With Quote
Old 02-22-09, 10:26 AM   #4
I_bRAD
Call me The Breeze
 
I_bRAD's Avatar
 
Join Date: Aug 2006
Location: Corbyville Ontario
Bikes: 2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
Posts: 3,699
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You need to pull off your freehub and put a few drops of oil in there. Mind the pawls and springs when you open it up!
I_bRAD 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 11:23 AM.