Has anyone heard when this group will be available? I'm thinking of switching one of my bikes to SRAM Red with the XX RD and cassette to offer lower gearing for steep long rides. I used to have a bike with a triple for that use but got tired of the cranky shifting. I don't think I'd want to go back in that direction so the Red/XX combo looks attractive. Bottom line for me is I have done all the rides in a standard 39/27 combo but I'm just as fast on easier gearing and suffer less pain that way. I just need the stuff (XX) to make it happen.