Ultegra Di2 with Sramd Red 2012 Crank?

[Fisherfreerider]

Anybody doing this? How is it working for you?

Plenty of threads on this

[Juggler]

I am doing it with the Sram Red Exogram (fitted with Stronglight CT2 rings) and it is flawless.

[clarkson]

I have been running my Sram quarq on a couple Di2 bikes the last few years. It worked fine (better than Sram front shifting) with the stock Sram rings, but better with praxis rings.

It will work well, better than Sram either way.

[Doolop]

I'm sure it works fine, but for what its worth the new sram red rings are spaced farther apart.

[bwdftp]

Running Sram Red Quarq with Di2 7970 and 9070. Both work fine.