Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-19-05, 04:38 PM   #1
Trekbikedude
Bicycle Rider & Mechanic
Thread Starter
 
Trekbikedude's Avatar
 
Join Date: Dec 2004
Location: Delaware
Bikes: Superlight, Dragon Team, Eclipse, Om Flyer
Posts: 686
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Vibration in frame

Well, whenever I brake with my HFX-9's, I use the brake a little bit (pull lever down a little) it hums and vibrates through the frame really loud. Please help I don't know what to do. I tried re alligning them, but if the caliper is straight, it hits the disc. please help. Will it just go away? Thanks for any help.
Trekbikedude is offline   Reply With Quote
Old 04-19-05, 05:37 PM   #2
Dannihilator
User Title
 
Dannihilator's Avatar
 
Join Date: Oct 2002
Location: Annandale, New Jersey
Bikes: 2014 Surly Steamroller, 1989 Nishiki Altron
Posts: 19,422
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Rotor is warped.
Dannihilator is offline   Reply With Quote
Old 04-19-05, 06:43 PM   #3
Trekbikedude
Bicycle Rider & Mechanic
Thread Starter
 
Trekbikedude's Avatar
 
Join Date: Dec 2004
Location: Delaware
Bikes: Superlight, Dragon Team, Eclipse, Om Flyer
Posts: 686
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It is slightly warped but the vibratrion is consistant it does not happen every rotation of the disc, only when I use the brake a little it does this. Could one of my rotor screws be loose?
Trekbikedude is offline   Reply With Quote
Old 04-19-05, 06:49 PM   #4
Dannihilator
User Title
 
Dannihilator's Avatar
 
Join Date: Oct 2002
Location: Annandale, New Jersey
Bikes: 2014 Surly Steamroller, 1989 Nishiki Altron
Posts: 19,422
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Rotor is warped. Warped rotors can be odd like that.
Dannihilator is offline   Reply With Quote
Old 04-19-05, 06:52 PM   #5
phantomcow2
la vache fantôme
 
phantomcow2's Avatar
 
Join Date: Aug 2004
Location: NH
Bikes:
Posts: 6,266
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
well when your installing the rotor, are you using the star pattern when tightening bolts?
__________________
C://dos
C://dos.run
run.dos.run
phantomcow2 is offline   Reply With Quote
Old 04-20-05, 06:33 PM   #6
Trekbikedude
Bicycle Rider & Mechanic
Thread Starter
 
Trekbikedude's Avatar
 
Join Date: Dec 2004
Location: Delaware
Bikes: Superlight, Dragon Team, Eclipse, Om Flyer
Posts: 686
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My LBS installed it. Maybe I should get them to reinstall them. The rotor only does it when I use the back brake.
Trekbikedude is offline   Reply With Quote
Old 04-20-05, 06:38 PM   #7
phantomcow2
la vache fantôme
 
phantomcow2's Avatar
 
Join Date: Aug 2004
Location: NH
Bikes:
Posts: 6,266
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Well first try to push the rotor against a table you know is flat, any surface really. If you see it is clearly true then when tightening do it in a star of david type pattern
__________________
C://dos
C://dos.run
run.dos.run
phantomcow2 is offline   Reply With Quote
Old 04-20-05, 08:07 PM   #8
mtbgod
Junior Member
 
Join Date: Nov 2004
Location: Québec, in Canada
Bikes: Oryx DH02
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I had the same problem, and it go away when I had change my cheap pads for real hayes pads. if is not for that, maybe your dics is a little bit twisted.
mtbgod is offline   Reply With Quote
Old 04-21-05, 08:49 AM   #9
Drunken Chicken
Senior Member
 
Drunken Chicken's Avatar
 
Join Date: Feb 2005
Location: Spain, although I'm Hungarian
Bikes: Check signature
Posts: 1,855
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mtbgod
I had the same problem, and it go away when I had change my cheap pads for real hayes pads. if is not for that, maybe your dics is a little bit twisted.
Drunken Chicken is offline   Reply With Quote
Old 04-21-05, 08:58 AM   #10
mtbgod
Junior Member
 
Join Date: Nov 2004
Location: Québec, in Canada
Bikes: Oryx DH02
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
lol, s'cuse me for that mistake
mtbgod is offline   Reply With Quote
Old 04-21-05, 09:32 PM   #11
Hopper
Ride bike or bike ride?
 
Hopper's Avatar
 
Join Date: Oct 2003
Location: Adelaide, Australia
Bikes: MongoosePro DH, Dart custom road bike, .243 Racing FR street bike
Posts: 1,447
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Does it sound like a kind of really annoying loud squeal with lots of vibration? If so, don't worry too much, my front brake does it all the time, it's just a slight warp in the rotor. In a while you will master the art of pissong people off by finding just how much to pull in your lever to make it the loudest most annoying sound and keep it going
Hopper 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 12:15 AM.