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Old 03-27-07, 05:21 PM   #1
LarionOak
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9-speed sram cassette+ sram chain+tiagra shifter won't shift smoothly

Hello everybody,

I just bought a used 2006 Bianchi Castro Valley that has a 42 tooth chainring up front, and a 9speed sram cassette (12-26T) coupled with a Shimano Tiagra rear derailleur and SRAM chain. I discovered that the chain is noisy in certain cogs, so I tried adjusting the tension of the cable.

I had no luck, so I brought the bike into my LBS. The mechanic adjusted the cable tension, made sure the derailleur and hanger weren't bent, and put in a new SRAM chain and 9speed SRAM cassette. The shifting is still noisy.

I'm writing all of you to see if you have any ideas about the problem (or should I say solution?). Also, does anyone think that using a 10-speed chain might help?

Thanks in advance.
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Old 03-27-07, 07:34 PM   #2
DieselDan
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With a single chainring up front, I'd look at the chainline to be sure it is within specs.
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Old 03-27-07, 08:12 PM   #3
LarionOak
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Thanks, Dieseldan, but what do you mean by chainline?
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Old 03-28-07, 09:48 PM   #4
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The proper alignment of the crankset and rear cassette. Lenard Zinn has a big chapter on it in his book.
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