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3/4/2012 9:22 PM

I have a 2010 Specialized Stumpjumper 29er with a 3 x 9 drivetrain and would like to change the cranks to a two ring setup so that the bike is 2 x 9, do I have to change any other parts or can I just swap the cranks and adjust the front derailure so that it doesn't shift onto the big ring.

3/5/2012 1:39 AM

You got it. No other changes are necessary.

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