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Creeking sound in bottom bracket(7 posts)

Creeking sound in bottom bracketLow Gear
May 6, 2001 5:55 PM
Hi, I just got a Klein Quantum Race. 100 miles on it and it flys. The only thing is that I started to notice a creeking sound coming from my BB area. It usually happens when I start to pedal hard. Has anyone had a similar experience? What can it be and how do I fix it? By the way I weigh 179, if it matters. Thanks for your help.
Creaking? (sp)Kerry Irons
May 6, 2001 6:35 PM
The most likely cause is that the BB was not greased or tightened enough. Is the bike new? If so, ask the shop to tighten the BB (and double check that grease, teflon tape, anti-sieze, or threadlock was used on insulation). Also recognize that the noise may be something completely different. Can you reproduce it by twisting the crank arms by hand or some other means? Otherwise it could be QR skewers, seat post, seat, hubs, spokes rubbing, pedals, cleats, shoes, stem, handlebar, brake levers, etc. Fair warning.
Opps! "creaking"Low Gear
May 6, 2001 7:34 PM
Thanks for checking me on my spelling and your info. I'll try your suggestion. And yes the bike is new.
"Oops" ? (sp) (nm)9WorCP
May 7, 2001 7:51 AM
nm
Installation (sp)?PsyDoc
May 7, 2001 10:38 AM
Branford bikes suggests the following for Shimano Dura Ace splined BB installation:

"Cups are lightly coated with thread lock and should be installled in a dry, clean bottom bracket shell. Do NOT grease or lubricate the threads."

...and for Ultegra or 105 splined BB installations:

"Adjustable cup is lightly coated with thread lock and should be installled in a dry, clean bottom bracket shell. Do NOT grease or lubricate the threads. It is ok to grease the drive side steel cup threads."

See Branford Bike's webpage on the subject: http://www.branfordbike.com/bottombr/bb4.html
And Litespeed saysKerry Irons
May 7, 2001 7:49 PM
to use grease. There is some conflicting information, but an awful lot of people are successfully using grease. If Brandford is saying "this is one way to install a BB" then I have no problem with it. If they are saying "this is the ONLY way to install a BB" then they are flat out wrong. Clearly, you don't use thread lock and grease together as the grease would prevent the thread lock from working.
Check the Chainring bolts.GW Rider
May 7, 2001 11:54 AM
This may not be a problem on a new bike, but it would not hurt to check 'em anyway. Remove them and apply a little bit of grease to the threads or any other anti-sieze stuff.