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What does creaking in the crankset region indicate?

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What does creaking in the crankset region indicate?

Old 03-08-18, 01:59 AM
  #1  
Abu Mahendra
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What does creaking in the crankset region indicate?

i have creaking on the crankset region. i have a hollowtech BB. what's causing it? there is no play on the pedals or BB when i pull up or down, or when i stand up and pedal...
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Old 03-08-18, 06:06 AM
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Could be many reasons. One issue I’ve had is the cartridge bearings can move slightly in the BB shell. The fix was to use a gap filling loctite between the bearing and shell.
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Old 03-08-18, 06:21 AM
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In the interest of saving on a lot of typing try these resources:
Creaks, Clicks & Clunks
Google search for Hollowtech creak
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Old 03-08-18, 06:37 AM
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Lots of causes. I had one of these and I was 100% it was coming from my BB. I took the whole thing apart, cleaned, lubed, re-torqued everything and, of course, it didn't change anything. I finally tracked it down to the cleat on my right shoe. While it wasn't loose, the flex was causing it to creak.
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Old 03-08-18, 07:40 AM
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Bike noises are notoriously difficult to track down. A noise that seems to be coming from the crank could be in the bottom bracket, chainring bolts, pedals/cleats, saddle, or even the headset or handlebars. Start by addressing the easiest possibilities first, and work through everything until you find it.
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Old 03-08-18, 02:29 PM
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Most likely your shoe rubbing on a crank arm as you peddle.
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Old 03-08-18, 06:00 PM
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i should add, the creaking is not cyclical or in sync with pedaling cadence or wheel rotation, but rather seemingly random.

Originally Posted by Abu Mahendra View Post
i have creaking on the crankset region. i have a hollowtech BB. what's causing it? there is no play on the pedals or BB when i pull up or down, or when i stand up and pedal...
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Old 03-08-18, 06:33 PM
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IME once a creak becomes annoying it can usually be traced if the rider pays attention. Close attention. I would re-torque the crank bolts first thing. Don't assume. Get the wrench in there and torque it to spec. Or as hard as you can if you don't (likely) have a torque wrench.
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Old 03-08-18, 06:57 PM
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Originally Posted by AnkleWork View Post
Most likely your shoe rubbing on a crank arm as you (pedal).
You are kidding, right? That is hardly the most likely cause of a creak, and would only occur at the bottom of the stroke.
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There's no such thing as a routine repair.

Don't tell me what "should" be - either it is, it isn't, or do something about it.

If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

Please respect others by taking the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!

Last edited by cny-bikeman; 03-08-18 at 07:10 PM.
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Old 03-08-18, 07:07 PM
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Originally Posted by cny-bikeman View Post
You are kidding, right. That is hardly the most likely cause of a creak, and would only occur at the bottom of the stroke.
I've had that exact thing happen to me. It was my shoe rubbing the chainstay when I was getting lazy with pedaling.
I've also had the cable cut too long from the FD and the cable end would touch the crank only in the little ring.
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Old 03-08-18, 07:35 PM
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Originally Posted by evan326 View Post
I've had that exact thing happen to me. It was my shoe rubbing the chainstay when I was getting lazy with pedaling.
I've also had the cable cut too long from the FD and the cable end would touch the crank only in the little ring.
Well, that makes it a 100% chance for you, but still is not "most likely" for the general population.
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There's no such thing as a routine repair.

Don't tell me what "should" be - either it is, it isn't, or do something about it.

If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

Please respect others by taking the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!
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Old 03-08-18, 07:39 PM
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Could be any parts of the crank or pedals. But it can also be the seat, seat post, rear QR or cassette lockring.

Loose cassette lockrings cause an awful lot of mystery creaks, in my experience.
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Old 03-08-18, 08:25 PM
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I just mean it is a possibility that shouldn't be ruled out. I agree it's unlikely
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Old 03-08-18, 08:43 PM
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Originally Posted by Abu Mahendra View Post
i have creaking on the crankset region. i have a hollowtech BB. what's causing it? there is no play on the pedals or BB when i pull up or down, or when i stand up and pedal...
Usually something a tad bit loose or not mated correctly brought on by a twisting force on a metal-metal joint. Two pieces of metal that are tight or mated enough to creek and move in steps or increments but not tight enough that would prevent moving in the first place. Worst case is something cracked and flexing when it should not be. I could throw out a bunch of analogizes but I don't know if they would be any better or representative than actual issue at hand. An old metal backyard swing set with a heavy dude on it, breaking free a rusted nut and bolt?

Along the lines of what others are saying, it could be the seat post but seems related to the pedaling/cranks because your weight is shifting as you go through the rotation. I had an adjustable stem and handlebars that was loose and creaked when I got out of the saddle for steep hills off road, happened in sync with my pedal stroke as I provided counter force through the bars as I was applying a lot of low rpm torque to the cranks and could be confused with crank noise and so on. Point being, you have to follow general practice and narrow down the source.

Assuming it actually is your bottom bracket and it is a creaking...
If you have standard threaded BB, make sure it is tight.. If so, take it apart, clean and put a little grease on the threads and carefully put it back together and see if that clears it up. Inspect it while you are there, a new HT bottom bracket is about $20 if that will give you piece of mind.

Last edited by u235; 03-09-18 at 08:09 AM.
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Old 03-09-18, 07:17 AM
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Originally Posted by evan326 View Post
I just mean it is a possibility that shouldn't be ruled out. I agree it's unlikely
Words matter. Anklework said it was the "most likely" and I questioned that without ruling it out at all. Again, referring to Sheldon's site and doing a Google search will likely solve the problem, rather than a lot of "it happened to me" posts before the OP has done basic troubleshooting.
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There's no such thing as a routine repair.

Don't tell me what "should" be - either it is, it isn't, or do something about it.

If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

Please respect others by taking the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!
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Old 03-09-18, 10:08 AM
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I apologize for trying to contribute.
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Old 03-09-18, 02:08 PM
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Originally Posted by evan326 View Post
I apologize for trying to contribute.
I merely expressed an opinion about the best course of action, with no intent to demean your contribution. It is simply true that exploring random and rare possibilities is not productive until one has methodically gone through the more common causes.
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There's no such thing as a routine repair.

Don't tell me what "should" be - either it is, it isn't, or do something about it.

If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

Please respect others by taking the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!
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Old 03-09-18, 02:22 PM
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This thread is awesome.
One time long ago, on a really long ride, a nearly imperceptible creaking finally got on my nerves. Upon returning home, I cinched down pedals, cranks, chainring bolts, seatpost, handlebar stem, et al. The noise went away, but I was never privy to its cause. I think the memory of the "fix" bothers me more than the memory of the noise itself, LOL.
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Old 03-09-18, 02:46 PM
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Originally Posted by cny-bikeman View Post
I merely expressed an opinion . . .
Is it OK if I merely express an opinion? Please advise.
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Old 03-09-18, 02:48 PM
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Sure it's not coming from your bicycle seat?
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Old 03-09-18, 03:07 PM
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indicates it's a lot quieter there than where I live, but yea why not the saddle? as good a guess as any, and that's all we can do.

not being there.. send airfare?





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Old 03-09-18, 03:17 PM
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Originally Posted by McBTC View Post
Sure it's not coming from your bicycle seat?
This is what I felt also. The creak is random led me to it.

Edit: just noticed you have Dahon folding bikes in the fleet. Could be the hinge joints. Grease quieted my KHS folder.

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Old 03-09-18, 03:18 PM
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Originally Posted by LKA View Post
This thread is awesome.
One time long ago, on a really long ride, a nearly imperceptible creaking finally got on my nerves. Upon returning home, I cinched down pedals, cranks, chainring bolts, seatpost, handlebar stem, et al. The noise went away, but I was never privy to its cause. I think the memory of the "fix" bothers me more than the memory of the noise itself, LOL.
The problem with Blitz fixes, you never really know what part was creaking.
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Old 03-09-18, 03:47 PM
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Originally Posted by AnkleWork View Post
Is it OK if I merely express an opinion? Please advise.
I don't know why you would ask me, but of course it's OK to express opinions.
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There's no such thing as a routine repair.

Don't tell me what "should" be - either it is, it isn't, or do something about it.

If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

Please respect others by taking the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!
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Old 03-09-18, 03:51 PM
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Originally Posted by cny-bikeman View Post
I don't know why you would ask me, but of course it's OK to express opinions.
Thank you for your blessing.
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