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will it work with a 9 speed setup?

My interweb research says that 10 speed cranks "should" work with 9 speed deraillers and freewheels. What's not clear to me is whether you have to use a 9 or 10 speed chain.

but that's the internet and no telling what BS some people are spewing. Call your local trusted mechanic - that's who I'd listen to.

<-- interested. let me check with my bike guy and get back to you asap

It'll work with 9spd cassette and RD, but you DO have to use a 10spd chain otherwise it may ghost shift chainrings as you traverse your cassette.

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Best riding advice I ever got... "make sure you have air in your tires"

will the 10 speed chain be too narrow for my 9 speed teeth?

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