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I presently run 9 speed Dura Ace, yet still have my old Ultegra crank. I want to install the new 7800 crank and bottom bracket. Will it work with old 9 speed or do I need to upgrade to 10 speed?

Thanks
 

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NeoRetroGrouch
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durkind said:
I presently run 9 speed Dura Ace, yet still have my old Ultegra crank. I want to install the new 7800 crank and bottom bracket. Will it work with old 9 speed or do I need to upgrade to 10 speed?

Thanks
It will work fine. Just as well as the one you have. - TF
 

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7800 cranks

work fine with DA 9-speed. The cranks are a snap to install, just be sure you have a torque wrench and that your BB faces are square.
 
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