Originally Posted by
BoSoxYacht
Campy may not be out of the question.
I wouldn't bet my life, but allegedly the cog spacing is the same for 11speed Campagnolo and Shimano 11speed.
If I'm wrong I'm sure you will all beat me down for being wrong, but...
It's close enough to work, but it's about 1mm off in total, so it's not quite as smooth.