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Advise

ryan922ryan922 Posts: 6
After some advice, My MTB is a 9 speed and I am thinking of running a 11-40 cassette the model number of my XT rear mech is a RD-M760 if I got a mech extender would my mech be able to run a11-40. I was also thinking of running 2 cogs up front would I need to change anything to all work together. -
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