• Right, enough of this flash $$$$$ stuff. Lets go to the other end of the market. What's my options in running a 10 speed di2 system? Will it be that I can have 6770 or 6870 leavers but need 6770 rear mech? Would I also need a 6770 front mech? What about satellite shifters?

    They should just release 105 di2 for less than the price of the etap rear mech.

  • You can you any part of 6770, 6870 and 9070 together, but your rear mech determines how many gears you can run in the rear. So any setup with a 6770 rear mech is 10 speed and any setup with a 6870 or 9070 rear mech is 11 speed

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