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Noise when lowing from 10th to 9th-5th gears

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Noise when lowing from 10th to 9th-5th gears

Postby Diego Sahagún » Sat Oct 25, 2014 1:19 am

I don't know what's happening but my mountain bike makes noise only when having the little chainring and I low from 10th to 9th-5th gears. Could it be because of an old chain :?: Are 1000-1500 Km enough for a narrow Shimano HG54 chain :?:
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Re: Noise when lowing from 10th to 9th-5th gears

Postby Diego Sahagún » Mon Oct 27, 2014 6:52 pm

Well :?:
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Re: Noise when lowing from 10th to 9th-5th gears

Postby chaberton » Tue Oct 28, 2014 5:25 pm

Sorry Diego,
what kind of noise?
Squeaking, ping, rattle?
Have you tried to clean the chain with the adapt tool and grease very well derailleurs?

You can do a simply test for your chain.
First You need to remove the chain from the bike and lay it on the ground.
Normally old and worn out chains, when put on the floor (long) and made ​​to move, if they have a movement like that of a snake, you need to change the chain; but if moving them they are pretty hard (linear movement) , it means that the chain is still good (old motorcyclist trick :wink: )
Roberto.
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Re: Noise when lowing from 10th to 9th-5th gears

Postby Diego Sahagún » Fri Oct 31, 2014 12:03 pm

Hola Roberto :!: I've had to change the chain and the bottom bracket. That noise was because of an old chain but it summed to a weak noise made by a very dirt bottom bracket.

Thanks so much
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