Microshift integrated drop bar shifters. Worked fine when I used them last when this bike was 2x10 11-36. I don't recall the derailer I was using at that time. I'll cross the shifter road after I sort out the interference between the derailer and big cog. It just seems odd that as I was studying up on 1x with the 11-46 cassette that nobody mentioned the necessity of a derailer hanger extender and many claimed that the m6000 shadow worked fine without a goat link and with the original b screw.