Originally Posted by
Creatre
Just FYI I did research and saw shimano/sram 11 speed cassettes are not interchangeable. I couldn't find hard evidence of that though, but a couple sites saying it was enough for me to stick with all sram in my 11 speed sram combo.
Zinn says 11's are all good across the board
Drivetrain compatibility hidden in plain sight - VeloNews.com