snoogins70

So I have a Bianchi Cavaria D2 that I was using as my road bike. This bike was wearing Campy Record 11 stuff, and it has served me well for the past two seasons. Well I just picked up a Litespeed Sabre and I'll be using THAT as my road bike from now on, so the Campy stuff got moved over to IT. Now I want to build up the Bianchi into a true gravel bike BUT, I'm finding it difficult to source a 1X drive train that has mechanical brakes. I'll be keeping the cantilever brakes that are on the frame at the moment, but I can't fing a !x groupset out there that's NOT got hydro brakes. Now my question is, will Ultegra mechanical 11 speed brifters work with a Shimano 11 speed GRX rear mech?

HTupolev

Yes, 11-speed GRX derailleurs use the same cable pull as all Shimano 11-speed road derailleurs, so they're compatible with all of the 11-speed road shifters.

If you really don't want a left-side lever designed for shifting, it looks like Gevenalle has their 1x11 "brifters" with road brake cable pull in stock right now, although obviously that's a very different type of shifter. Alternately, you could use brake levers and a bar-end shifter.

mstateglfr 

Just buy some 105 or Ultegra shifters and dont use the left paddles for shifting. 5800, 6800, r7000, r8000 - you have 4 groups to choose from for new/takeoff as they all shift 11 speed.

Or look up how to modify the left shifter so it operates a dropper post.

zen_

SRAM Apex 1 and Sensah SRX Pro are both available in 1x11 drivetrains with mechanical brakes, in addition to just using 2x11 Shimano setups as 1x11 already mentioned.