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Author Topic: New chain / Noisy drivetrain  (Read 1976 times)

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Offline red_spectre

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New chain / Noisy drivetrain
« on: March 21, 2016, 02:39:03 PM »
New chain. If I turn the cranks by hand it is silent and smooth. Once I am on the bike, the drive train is very creaky / noisy whilst pedaling forwards (backwards is smooth/silent).

I have not pedaled more than around the block.

I am guessing this is simply from wear patterns on my cog/sprocket. Will this remedy itself after I put some time on it? Anyone have experience with this? I have never had a problem putting on new chains on my set ups in the past. I don't want to destroy something, but at the same time I cannot afford to shell out a bunch of money on my drive train atm.

Tried 2 new chains. New bearings in bb. Not to tight. Lubed.

 

Offline torontoflatlander

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Re: New chain / Noisy drivetrain
« Reply #1 on: March 21, 2016, 04:27:02 PM »
1 - Is the chain upside down?
2 - New chain - worn in drivetrain. It will take some time to wear in, but it will happen.

The tooth spacing changes on the sprocket just a bit as the chain is worn and stretched.
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Offline cmc4130

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Re: New chain / Noisy drivetrain
« Reply #2 on: March 21, 2016, 04:40:51 PM »
New chain. If I turn the cranks by hand it is silent and smooth. Once I am on the bike, the drive train is very creaky / noisy whilst pedaling forwards (backwards is smooth/silent).

I have not pedaled more than around the block.

I am guessing this is simply from wear patterns on my cog/sprocket. Will this remedy itself after I put some time on it? Anyone have experience with this? I have never had a problem putting on new chains on my set ups in the past. I don't want to destroy something, but at the same time I cannot afford to shell out a bunch of money on my drive train atm.

Tried 2 new chains. New bearings in bb. Not to tight. Lubed.

Do you have good chain line?


Offline red_spectre

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Re: New chain / Noisy drivetrain
« Reply #3 on: March 21, 2016, 05:27:12 PM »
Chain line is good and the chain itself is installed correctly.

The build itself is over 2 years old. I usually change my chain out at the beginning of every spring. However, before doing that, I snapped my current one.

I managed to find the left over links and pieced together my old chain. It works fine (around 15-20 or so new links of 38 + half link that make up my chain). The new links don't see to be causing the same issue.

I expect some creaking/wear in when putting on a new chain. However, this was a bit over the top and even pedaling to break it in felt wrong.

Odyssey Bluebird ---> SRAM PC1 ---> KMC 510HX (Creaking)




Offline O.G. David

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Re: New chain / Noisy drivetrain
« Reply #4 on: March 22, 2016, 01:28:52 PM »
I had the same, extremely loud. Turned out it was my driver worn down in a shuriken shape.

Offline cmc4130

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Re: New chain / Noisy drivetrain
« Reply #5 on: March 22, 2016, 04:19:44 PM »
Chain line is good and the chain itself is installed correctly.

The build itself is over 2 years old. I usually change my chain out at the beginning of every spring. However, before doing that, I snapped my current one.

I managed to find the left over links and pieced together my old chain. It works fine (around 15-20 or so new links of 38 + half link that make up my chain). The new links don't see to be causing the same issue.

I expect some creaking/wear in when putting on a new chain. However, this was a bit over the top and even pedaling to break it in felt wrong.

Odyssey Bluebird ---> SRAM PC1 ---> KMC 510HX (Creaking)

Did you possibly mix 1/8" (4/32")  and 3/32" chain links?

The leftover links were definitely from a singlespeed chain? Not a chain for geared bikes?  They can be narrower, and therefore not as good for a bmx sprocket.

http://ridemonkey.bikemag.com/threads/question-on-bmx-and-mtb-chain-compatibility.105250/

 . . . .
http://www.amazon.com/SRAM-Snaplock-Bicycle-Single-Speed-Silver/dp/B0013FBE8I

Sheldon Brown talked about chain wear here:
http://www.sheldonbrown.com/chains.html
« Last Edit: March 24, 2016, 04:01:00 PM by cmc4130 »

Offline Sasha

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Re: New chain / Noisy drivetrain
« Reply #6 on: March 24, 2016, 12:48:58 PM »
You'd have to be pretty blind to put a BMX chain and a geared chain together.

Offline Professor Horatio Hufnagel

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Re: New chain / Noisy drivetrain
« Reply #7 on: March 29, 2016, 12:34:58 AM »
You'd have to be pretty blind to put a BMX chain and a geared chain together.

What a helpful post. Good thing you were here

Offline Sasha

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Re: New chain / Noisy drivetrain
« Reply #8 on: March 31, 2016, 01:12:49 AM »
At least I stayed on topic. You're just highlighting how much you want to suck me off. Again.

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Re: New chain / Noisy drivetrain
« Reply #8 on: March 31, 2016, 01:12:49 AM »

 

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