Technical & Reference Section > Tech and Restoration

BB bearings?

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Gary72:

--- Quote from: kuwahero on January 02, 2011, 11:06 AM ---If its an Aluminium frame there's a high chance it might be the frame.

They can develop creaks and tings over time. Try replacing bb first then you will know

Replaced two bb's in my mates 90's floval flyer and still has the same issue.

--- End quote ---
My Redline with a euro BB kept creaking, I bought a new Profile BB. Followed the instructions on profile's website, It says to wrap ptfe tape round the threads, Never heard this before but done it anyway, No noise since.
Had tried new bearings before replacing complete BB.

TwoBobRob:
An isolator basically.   Same idea as my smother it in copper grease approach  :)

level:
Ok, took it out for a ride tonight (8 miles), and the sound got worse, and it felt so bad to the point where I felt guilty for pedaling! Anyway, got back, stripped the bb down and 3 bearings from the non chain ring side had come out of the metal basket! Took it out and the rest fell out! I've re packed it all with copper slip, and got it pretty tight, but the creak and now clunk is still there.

Reckon I'll be needing those then! So, do I just buy the bearing set of eBay? And is it American?

I also swooped out the pedals from my DH rig, and it made a huge difference to the noise and feel, no point in re building them I guess?

J

rick1970:
Stupid question approaching,,,whats a us bottom brkt i assumed all o/s bbs where the same, as ours or anywhere else :idiot2:

HEYWOOD BMX:
 :) Rick,are the cages/bearings sitting in cups pressed into the frame? Same size as a Burner,DP,SE? If so then you`ve got a US bb.Any local bikeshop(but not L-Lakes!) should have a full set or balls & cages.

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