Clicking bottom bracket on new bike - help!

[derrick]

What IS bearing fit compound? Does it set hard? If so, how would you replace worn out parts when it became time to do so?

I have never seen inside BB30 so I do not know how it all fits together, or what this compound would do. I could imagine using something like Loctite to stop the bit that is pressed in moving.

loctite 609 holds the bearing in place.

 

[flake99please]

Mine has developed the dreaded clicking sound about 3 weeks ago, but only under certain circumstances (uphill, headwind, etc). I was surprised its taken so long tbh, considering my bikes usage (CC). I would prefer to replace the entire unit as a permanent fix, rather than temporarily resolve the issue with grease/bearing fit compound. The links above look promising, but I wouldnt fit a Red item on my bike if someone paid me. Any other colour options?

 

[ColinJ]

loctite 609 holds the bearing in place.

So is Loctite just a particular brand of bearing fit compound?

 

[derrick]

Mine has developed the dreaded clicking sound about 3 weeks ago, but only under certain circumstances (uphill, headwind, etc). I was surprised its taken so long tbh, considering my bikes usage (CC). I would prefer to replace the entire unit as a permanent fix, rather than temporarily resolve the issue with grease/bearing fit compound. The links above look promising, but I wouldnt fit a Red item on my bike if someone paid me. Any other colour options?

I think they come in black if you use steel bearings rather than ceramic.

 

[derrick]

So is Loctite just a particular brand of bearing fit compound?

Yep.

 

[ColinJ]

If the solution to the clicking problem is simply a little Loctite, why does everybody make such a fuss about it?

I got the impression that this was supposed to a 'problem from hell' and read of people selling their bikes because they couldn't sort it out!

 

[outlash]

If the solution to the clicking problem is simply a little Loctite, why does everybody make such a fuss about it?

I got the impression that this was supposed to a 'problem from hell' and read of people selling their bikes because they couldn't sort it out!

Everyone makes a fuss because it's the internet . IME, the only 'don't' on BB30's is get cheap bearings from ebay or wherever when it comes to replacing them.

 

[flake99please]

I think they come in black if you use steel bearings rather than ceramic.

Steel bearings will be fine. Thank you.

 

[derrick]

Steel bearings will be fine. Thank you.

http://www.madison.co.uk/products/c...om-brackets/pressfit-30-bottom-bracket-black/
Just check and make sure it's the one you need, I don't know how good they are as i only fitted it today, it definitely looks more substantial than the one i took out, plus you can buy the bearings on there own if they do wear out.

 

[Globalti]

It's an issue because nobody has bothered to investigate it properly; shop mechanics just accept the received wisdom and smear grease on the parts, temporarily curing the noise that comes back after a few days.

Here's a pic of my FSA BB axle after only a few hundred miles:

Notice how the machined surface of the axle has worn and fretted in the areas where it sits inside the bearing inner races as the axle bends microscopically. It's worse on the non-drive side because on the drive side the stresses are evened out by the chainrings. Smearing green grease on these areas cured the noise but it returned after a few miles. On stripping down again I noticed that the grease had turned black, indicating metal wear. That got me thinking and I came to the conclusion that something was moving against something else. Smearing with bearing fit compound, which is just a softer grade of Loctite glue, cured the noise which hasn't returned in a couple of thousand miles. The very same thing happened to the FSA BB30 in my buddy's tarmac, same cure fixed it.

When you smear on the bearing fit compound, put it on the axle on the drive side and inside the bearing on the non-drive side so there's less chance of it being wiped off as you push in the BB axle, which is a snug fit inside the bearings.

Dismantling the BB breaks the film of seal so you'll need to clean it up and reapply it.

 

[Robeh]

Had PF BB30 on my boardman for a while till the clicking got on my nerves so i removed the bearings and replaced it with Hollowtech ii BB job done no more clicking..and a 105 6800 chainset.

 

[spiderman2]

It's an issue because nobody has bothered to investigate it properly; shop mechanics just accept the received wisdom and smear grease on the parts, temporarily curing the noise that comes back after a few days.



Here's a pic of my FSA BB axle after only a few hundred miles:

Notice how the machined surface of the axle has worn and fretted in the areas where it sits inside the bearing inner races as the axle bends microscopically. It's worse on the non-drive side because on the drive side the stresses are evened out by the chainrings. Smearing green grease on these areas cured the noise but it returned after a few miles. On stripping down again I noticed that the grease had turned black, indicating metal wear. That got me thinking and I came to the conclusion that something was moving against something else. Smearing with bearing fit compound, which is just a softer grade of Loctite glue, cured the noise which hasn't returned in a couple of thousand miles. The very same thing happened to the FSA BB30 in my buddy's tarmac, same cure fixed it.

When you smear on the bearing fit compound, put it on the axle on the drive side and inside the bearing on the non-drive side so there's less chance of it being wiped off as you push in the BB axle, which is a snug fit inside the bearings.

Dismantling the BB breaks the film of seal so you'll need to clean it up and reapply it.

done mine a few weeks ago,still quiet. fingers crossed

 

[Tojo]

FSA....Full speed ahead,......I think it should be changed to.........Fecking Stay Away......

 

[ColinJ]

FSA....Full speed ahead,......I think it should be changed to.........Fecking Stay Away......

Well, I have FSA on my CX bike. If the BB starts to creak/click I will try Globalti's fix and see how I get on with that.

 

[Tojo]

Well, I have FSA on my CX bike. If the BB starts to creak/click I will try Globalti's fix and see how I get on with that.

I was only having a wee joke.....have a or a dram......I am