I am faced with a problem. LBS says that the 10 speed xt M770 crankset will work with my complete 9speed XT M770 drivetrain. I am concerned based on some of the posts that I have read.
LBS states that the 10 speed and 9 speed XT M770 crankset are exactly the same except the number of teeth on the crankrings. also stated that the FD and shifters will work without problem with the 10 speed crankset.
Is this true or should I put a stop to it before they install it on my bike on monday.
Please let me know your thoughts.
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