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  1. #1
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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.

  2. #2
    Senior Member DieselDan's Avatar
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    With a single chainring up front, I'd look at the chainline to be sure it is within specs.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  3. #3
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    Thanks, Dieseldan, but what do you mean by chainline?

  4. #4
    Senior Member DieselDan's Avatar
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    The proper alignment of the crankset and rear cassette. Lenard Zinn has a big chapter on it in his book.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

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