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  1. #1
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    Shimano Road and MTB Compatibility

    Hey, I'm considering converting my standard 3x9 shimano drivetrain to a 1x9 shimano drivetrain. But with a couple of road parts thrown in.

    My question is: Can I use a road bike cassette in that configuration?

    I currently have a 9 speed XT shadow rear derailleur (long) and I have a deore 11-34T cassette. Which is a typical configuration.

    I would like to install a tiagra, 105 or ultegra level 9 speed cassette 12-30T as well as an ultegra 10 speed chain on there.

    After googling around a bit, it looks possible, but I'm still not 100% sure. Would this configuration even work?

    Also, I plan to ditch the front derailleur and shifter and put on a 32T front chain ring (should not effect the RD or cassette issue) but just wanted to let you know upfront.

    Thanks!

  2. #2
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    Yes, I regularly swap my SLX and 105 cassettes for riding in the city or bike paths.

  3. #3
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    Dont see why the 9 speed road cassette wouldnt work as long as you are strong enough to pedal a 32T chainring and 30T cog up hills.

    Not sure about the 10 speed chain on a 9 speed rear cassette. The 10 speed chain links are smaller.

  4. #4
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    Thanks guys!

    I ride a 34x21 rigid singlespeed as well.

    I'm experimenting with different drivetrains to see what feels best. I wanted to convert my full suspension to 1x9 and lighten it up at the same time. 27 gears is just way too many for me. And the bike feels a bit heavy. I'm thinking the 1x9 with road cassette is a good compromise and that tiagra cassette is cheap, so I don't care if it doesn't last.

  5. #5
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    As you say, it's cheap to try. I'm not sure a road cassette will stand up to normal MTBing. I know my 105 cassette feels like a piece of jewelry compared to my SLX cassette. Not sure how strong it is.

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