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

Clicking/Ticking bottom bracket

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.

Clicking/Ticking bottom bracket

Old 06-24-10, 10:26 AM
  #1  
CliftonGK1
Senior Member
Thread Starter
 
CliftonGK1's Avatar
 
Join Date: Jul 2006
Location: Columbus, OH
Posts: 11,375

Bikes: '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2015 Trek Domane 6.2 disc

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
Clicking/Ticking bottom bracket

I've isolated it to the bottom bracket:
- The noise also happens when I'm standing, so it's not a saddle creak.
- The noise is present if I spin with only one foot, either side; so it's not a pedal problem.
- I checked the crank bolts and the arms are not loose.
- I checked the chainring bolts and they are not loose.

It happens at the same spot in the pedal stroke, forward or backward. It's a click/tick as the crank moves past a certain position. It doesn't happen without pressure on the pedals; just spinning them in the stand won't do it, but if I apply the rear brake and use some force on the cranks I can make it happen.
The BB doesn't feel as though it's sticking at that spot when I spin it by hand. It's a less than 1yr old UN54, so I don't think it's a problem with the bearings.

I'm going to take it out and regrease the threads and see if that helps.

The Question: Would riding all fall/winter/spring through the soaking rain eventually deteriorate or wash away the grease I used when origainally installing the part, leading to this noise?
__________________
"I feel like my world was classier before I found cyclocross."
- Mandi M.
CliftonGK1 is offline  
Old 06-24-10, 03:10 PM
  #2  
DArthurBrown
Chasing the horizon.
 
DArthurBrown's Avatar
 
Join Date: Feb 2009
Location: Michigan
Posts: 497

Bikes: 2016 Felt F75, 2008 Mercier Corvus Steel, 2007 Trek 4300, 1985 Trek 620 (modernized)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yep. Most likely, a thread is clicking somewhere. I see you checked the pedals. It's best if you can swap the pedals out entirely to test. Certainly try regreasing each pedal thread, even if it doesn't seem like that's the issue.

The next step would be to regrease all threads, doing one set at a time for testing purposes, in case it happens again.

What sort of crank and bottom bracket are you using?

EDIT: I see it's a UN54. It's unlikely the bottom bracket itself is clicking, but the threads may very well be.
DArthurBrown is offline  
Old 06-24-10, 03:16 PM
  #3  
CliftonGK1
Senior Member
Thread Starter
 
CliftonGK1's Avatar
 
Join Date: Jul 2006
Location: Columbus, OH
Posts: 11,375

Bikes: '08 Surly Cross-Check, 2011 Redline Conquest Pro, 2012 Spesh FSR Comp EVO, 2015 Trek Domane 6.2 disc

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
Originally Posted by DArthurBrown View Post
Yep. Most likely, a thread is clicking somewhere. I see you checked the pedals. It's best if you can swap the pedals out entirely to test. Certainly try regreasing each pedal thread, even if it doesn't seem like that's the issue.

The next step would be to regrease all threads, doing one set at a time for testing purposes, in case it happens again.

What sort of crank and bottom bracket are you using?

EDIT: I see it's a UN54. It's unlikely the bottom bracket itself is clicking, but the threads may very well be.
It's a Sugino XD700 crank.

While I'm greasing things up, it can't hurt to have the pedals off and re-grease them, too. Once I ruled them out as the culprit, I shouldn't have been so quick to write them off. Some preventive maintenance will keep them from becoming the next noise I have to track down.
__________________
"I feel like my world was classier before I found cyclocross."
- Mandi M.
CliftonGK1 is offline  
Old 06-24-10, 03:26 PM
  #4  
Al1943
Senior Member
 
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438

Bikes: Trek 5500, Colnago C-50

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 3 Times in 2 Posts
Torque the BB to specs.
Al1943 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Corbin Gross
Bicycle Mechanics
12
08-09-16 01:34 PM
DPDISXR4Ti
Bicycle Mechanics
6
07-06-16 10:00 AM
Ryan_M
Bicycle Mechanics
25
12-17-13 09:48 PM
Taz1743
Bicycle Mechanics
12
07-26-12 12:50 PM
brut3forc3
Bicycle Mechanics
3
04-17-10 02:43 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.