I should note, the rest of the electronic components seem still to be compatible. You just need to get the derailleurs, which is getting increasingly more difficult as 6770 DI2 stuff ages out. It appears from all my knowledge available on the matter that its only the derailleurs that make DI2 10 or 11 speed compatible. Except the original 7970 DI2 which no one wants at this point due to age and incompatibility, all of the shifters, junction and control boxes for mountain bikes and road bikes are completely compatible with each other. Not sure if you've covered this just yet, but its just my latest trials in bringing an 07 Trek 1500 SLR out of the dark ages.
Duck! wrote:ball bearing wrote:Is a Campagnolo 11 speed chain compatible with Shimano drivetrains? I have heard two different stories.
I havent tried it, but suspect it would be a better match than 10-sp. C10 is distinctly wider than S10, but 11-sp. is pretty similar between the two. Link shaping may not perfectly match the sprocket & chainring ramping, but should work OK.
From what I gather the Shimano, SRAM and Campag 11 speed cogs share the same spacing between them, so should be largely compatible. Again I don't have a Campag bike at the moment to test this out on, but others seem to be doing "fine." Bear in mind one mans fine is another mans turd sandwich when it comes to shifting.