Took out the old xt derailuer today on a ride. and picked this up at the LBS, with an x-7 shifter. i am again a VERY happy Sram customer. this setup is a "gotta ride it to believe it" setup. and the click-pop feel is so satisfing. and it sure is nice to NOT have the big dorky loop of housing out the back. my only complaint, is whats the deal with the faux carbon patterning on a high end item like this? is like the mercedes AMG model's b-pillars