Originally Posted by
CABELLOJO
So, 7400 are for the 8's and 7700 for the 9 speeds?
The 7400 cranks were for 6 and 7 speed Dura Ace groups, the 7402 for 8 speed. The 7410 is for 8 speed and the 7700 is for 9 speed. But really any of them would work fine with 9 speed as far as I know. The 10 speed 7800 cranks will also work fine with 9 speed.