Grease on Bottom Br...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] Grease on Bottom Bracket

13 Posts
13 Users
0 Reactions
64 Views
Posts: 1766
Free Member
Topic starter
 

How much grease do you apply to a threaded bottom bracket ?

My hardtail has been making a creaking noise when I roll the bike from side to side, the BB was only 300 miles old. I fitted a new BB yesterday with a light touch of grease and still the creaking noise. I'm fairly certain the noise is coming from the BB as when shood on one pedal and rolling the bike left/right I can clearly hear the creaking. Should they be slavered with a decent amount of grease/anti seize ?


 
Posted : 23/09/2021 7:33 am
Posts: 8527
Free Member
 

Try different pedals, grease crank bolts.


 
Posted : 23/09/2021 7:42 am
Posts: 3991
Full Member
 

Push fit or threaded BB?

I'd be looking at the crank/BB interface or the pedals.


 
Posted : 23/09/2021 7:44 am
Posts: 861
Free Member
 

I put loads of grease on the threads of a bottom bracket. That's more about stopping it seizing into the frame than anything else.
Just a smear on square taper axles and a little bit of hollow tech or similar.
The only creaking I've had recently was a worn SRAM BB.


 
Posted : 23/09/2021 8:38 am
Posts: 1019
Free Member
 

I had similar last year, tried new pressfit bb, chain, changed all frame bearings with no success, eventually found a tiny crack on the mech hanger/axle threads which was the source of the creaking, sorted with new hanger but I was 110% convinced it was coming from the bb/cranks at first


 
Posted : 23/09/2021 1:03 pm
Posts: 1766
Free Member
Topic starter
 

Thanks for the suggestions. It's a threaded bottom bracket. I will certainly investigate the Thru axle.


 
Posted : 23/09/2021 1:28 pm
Posts: 0
Free Member
 

QR rear wheel? Tighten that if so. Fixed my creaking anyway (after being adamant it was BB and then headset).


 
Posted : 23/09/2021 8:09 pm
Posts: 325
Full Member
 

I spent the whole of last winter trying to stop my bottom bracket from creaking. It ended up being a stem bolt.

If you really think it’s you BB, healthy smear of grease on the frame threads, and a layer of PFTE tape on the BB cup threads (don’t forget the reverse thread on the drive side).


 
Posted : 23/09/2021 10:52 pm
Posts: 2628
Free Member
 

I have the same problem on a threaded BB. I'm 90% sure it's the actual BB as I've swapped pedals, greased axles, tightened chainring bolts etc. However, while I have a Park Tool BB tool, I don't have a torque wrench and am a bit nervous about how hard to tighten the BB (I've not swapped any before). Any tips?
(It's a gravel bike that's done over a couple of thousand miles in less than a year so maybe the BB has actually died rather than got a bit dry.)


 
Posted : 23/09/2021 11:00 pm
Posts: 3783
Free Member
 

Check your chain ring bolts too


 
Posted : 23/09/2021 11:05 pm
Posts: 44146
Full Member
 

BBS can go in pretty tight. A good lean on the bb tool should be enough.


 
Posted : 23/09/2021 11:10 pm
Posts: 0
Free Member
 

Check your headset. Sound travels through a frame in mysterious ways.


 
Posted : 24/09/2021 5:06 am
Posts: 0
Free Member
 

What forks have you got?

Just google creaking Fox forks, or look on youtube


 
Posted : 24/09/2021 7:39 am
Posts: 1154
Free Member
 

How well did you clean the threads in the frame before putting the new one in? dab of Copaslip on the new BB threads and use a torque wrench to make sure its tight enough, beware cheap torque wrenches often don't work on LH threads.


 
Posted : 24/09/2021 9:47 am

6 DAYS LEFT
We are currently at 95% of our target!