Originally Posted by
Mark Manner
I have been using 11/36 in the rear and 50/34 up front with the di2 mechs with no problem at all
So you can use something bigger than 32 in the rear with Ultegra Di2? A 34T x 36 would be more than low enough for me. (Did you have to use the Wolftooth Roadlink on that?)
I'm thinking about this again, since I mashed a tooth on my large Ultegra chain-ring with a rock the other day and had to Dremel it back into shape.