Squeak

[Al E Kaatz]

I have a squeak that I think is coming from the BB. If I remove the pedals and then unscrew the threaded cups, is it possible to clean and repack the bearings in the BB? I don't want to tear it all apart and discover that I can't do this.

My Q45 is a 2023 model.

 

[Tuloose]

With the newer sealed bottom brackets it is advisable to just change out the BB instead of trying to repack it. In any case the squeak is unlikely to be coming from the bearings but more likely from the crank arm BB interface, the pedals or the cups holding the BB in place.

 

[Al E Kaatz]

“the crank arm interface”?

 

[Tuloose]

“the crank arm interface”?

Well if the crank arms are tight then it can't be coming from there and you're not supposed to apply grease to the tapers on the BB. Grease the cups on either side of the BB. Remember the right side is reverse threaded.

 

[Frito Bandito]

If Tuloose's solution doesn't fix the squeak another thing to check are the chain ring bolts. It's pretty rare but those sometimes squeak too.
I am not sure what kind of BB cups you have, but I swap mine out every 2 years. At $30 (here) for a set of Dura Ace cups it is just a no brainer for me.

 

[Al E Kaatz]

If Tuloose's solution doesn't fix the squeak another thing to check are the chain ring bolts. It's pretty rare but those sometimes squeak too.
I am not sure what kind of BB cups you have, but I swap mine out every 2 years. At $30 (here) for a set of Dura Ace cups it is just a no brainer for me.

can you resend that link? nothing happens when I tap “(here)”

 

[Al E Kaatz]

Well if the crank arms are tight then it can't be coming from there and you're not supposed to apply grease to the tapers on the BB. Grease the cups on either side of the BB. Remember the right side is reverse threaded.

what are “tapers”?

 

[Frito Bandito]

can you resend that link? nothing happens when I tap “(here)”

Sorry braddah, I didnt include a link. By "here" I meant Tokyo, not a website.

 

[Mathew Fy]

I have a squeak that I think is coming from the BB. If I remove the pedals and then unscrew the threaded cups, is it possible to clean and repack the bearings in the BB? I don't want to tear it all apart and discover that I can't do this.

My Q45 is a 2023 model.

If you want to see more opinions, search the forum for "creak". You may find a solution.

Search results for query: creak

forum.cruzbike.com

 

[Tuloose]

what are “tapers”?

Referring to the common square taper BB. The crank arms attach to them. Look up videos on YouTube. There are other types of bottom brackets but I assumed you might have the most common type.

 

[Al E Kaatz]

Today I plan to replace the pedals with a spare pair to see if that matters. If it doesn’t then I’m back to trying to pull those BB cups.

 

[Al E Kaatz]

Problem fixed. Once again, silence is golden.

 

[Joe Riel]

Problem fixed. Once again, silence is golden.

What the fix? New pedals?