[Jeffpastor4]

Had the bottom bracket replaced & still get annoying creaking sound under load especially in lower half of cassette & small ring, crank set has 15k+ miles…. bad bottom bracket or new crank set?

Topic

[LastBoyScout]

LastBoyScout wrote:

I also have a suspicion the freehub is shot, as it’s still got another issue with noise under load.

It wasn’t the freehub – rear mech was very slightly out. 1/2 turn on the adjuster and it’s all good.

[Simboid]

I thought I had a creaky

I thought I had a creaky crank or pedal, after an expensive service didn’t cure it google suggested it might be my cleats. It was! Moving them inboard all the way got rid of it.

[n_g]

Since you mentioned the lower

Since you mentioned the lower half of the cassette — it’s possible that the cassette itself is creaking. I had a creaking sound that I thought was from the BB or crank, but it was only noticeable on the 3 largest cogs of the cassette. It went away after lightly greasing the part of the hub that touches the cassette, and tightening the cassette locking to the proper torque.

[LastBoyScout]

One of my bikes has been

One of my bikes has been making a creaking noise in exactly the same part of the pedal stroke. Turned out to be the pedal bearings.

I also have a suspicion the freehub is shot, as it’s still got another issue with noise under load.

[drjohn]

I’ve had a creaky pedal

I’ve had a creaky pedal thread in the past.

I used a more waterproof grease and Bang! the creak is gone…

[OR_biker]

Duncann wrote:

OR_biker wrote:

I had gotten a thread-together adapter for my CAAD8 (BB30), but after a while the creaks came back.  I did some tests to try to isolate the bottom bracket (i.e. had wheels off the ground and pressed laterally on the cranks) and I was sure that it was still the thing causing it.  Then I finally got a new wheelset last week, and the creaking is gone…  go figure 🙂

QRs…?

 

I’m thinking now that’s a possibility.  The older wheels are Fulcrum 5’s and the skewers have external cams.  I have some extra Shimano internal-cam QR’s from an even older set of wheels that are still in great condition (the QR’s, not the wheels 🙂 ), if the creak comes back whenever I decide to throw the Fulcrums back on I’ll try swapping those out to see if they help.

[Dnnnnnn]

OR_biker wrote:

I had gotten a thread-together adapter for my CAAD8 (BB30), but after a while the creaks came back.  I did some tests to try to isolate the bottom bracket (i.e. had wheels off the ground and pressed laterally on the cranks) and I was sure that it was still the thing causing it.  Then I finally got a new wheelset last week, and the creaking is gone…  go figure 🙂

QRs…?

[OR_biker]

I had gotten a thread

I had gotten a thread-together adapter for my CAAD8 (BB30), but after a while the creaks came back.  I did some tests to try to isolate the bottom bracket (i.e. had wheels off the ground and pressed laterally on the cranks) and I was sure that it was still the thing causing it.  Then I finally got a new wheelset last week, and the creaking is gone…  go figure 🙂

[ktache]

I have had bottom bracket

I have had bottom bracket creaks that turned out to be seatpost creaks.  

[matthewn5]

Duncann wrote:

Is it definitely the cranks? I’ve never had it but I’ve read a few accounts of how crank-like creaks were finally traced to rear wheel skewers… seems odd but might be worth 30 seconds of your time to check/grease yours.

The creaks I had on my Colnago turned out to be the titanium skewers I’d added in. They don’t grip the drop outs tightly enough. Replace them with proper internal-cam skewers. Noise all gone!

The other time it turned out to be loose chainring bolts. And another time the saddle squeaking on the rails. Hunt around!

[Goldfever4]

Echoing Duncann, it can be

Echoing Duncann, it can be surprising where the creak actually originates from. I’ve found success cleaning out my seatpost / seat-tube before.

[Dnnnnnn]

Is it definitely the cranks?

Is it definitely the cranks? I’ve never had it but I’ve read a few accounts of how crank-like creaks were finally traced to rear wheel skewers… seems odd but might be worth 30 seconds of your time to check/grease yours.

You may have a square taper BB –  the cranks’ inner taper faces sometimes wear so that there’s a bit of movement and creaking. It’s difficulto to see and resolve (with light attention from a file) but might be worth removing the cranks and looking at how they’ve worn, then cleaning and replacing them. Whether the tapers should be greased is a matter I dare not raise (try Google).

[Jimthebikeguy.com]

Yep, consider investing in
Yep, consider investing in either a wheels manufacturing threadfit adaptor, or one of the enduro bearings ones. Both last lifetimes without creaking.

[CXR94Di2]

There are many press fit
There are many press fit conversion adapter s. They screw together to create a one piece bearing set, usually with replaceable bearings.

Or like many riders sick to death of pressfit BB bought a bike with good old English threaded bearings.

[Paul7189]

Is it a press fit bottom

Is it a press fit bottom bracket? If so then you can try removing the bearing cups, greasing them up and pressing them back into the frame. Its probably a job for a bike shop if you dont have the correct tools. Press fit bottom brackets are famous for creaking. 

[Author]

Replies