Started new thread Drivetrain 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 ... more »

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