It's a 10sp. I saw one guy even changed to an ultegra 6800hub, pg 1070 11-36 cassette, an XT 9sp RD, and shimano 6701 10sp chain. I'm wondering if I could just do the sram 12-32 and call it a day and just watch my big-big and small-small pedaling. And if it doesn't quite work try a med cage RD. Would I almost certainly need a longer chain?