Is anyone using cable actuated Hydros/or mechanical brakes with Campagnolo Shift brake levers? I am wondering how the lever pull would affect function with the different options presented.
I am in the process of adapting TRP HY/RD flat mount calipers to Chorus 11 levers. The HY/RD calipers, just like the Spyre, have been designed around the newer, longer cable pull adopted by Shimano and SRAM. As a result, trying to use either caliper with a Campy lever results in no/little braking with the levers pulled all the way to the bars (perhaps better with 'ergo' style bars than classic round bend bars but I'm using the latter).
There is a hack for the HY/RD calipers where you cut a slot in the arm and route the cable through it closer to the pivot but it's a hack. There is no slot for the cable to sit in so the cable gets crushed. The cable also has no strain relieving bend to it any more. I wouldn't feel comfortable running my brakes that way.
My solution is an entire new arm with a proper cable clamp, strain relief, and pull ratio designed in. About a week ago I received my first working prototypes (I can post pics if interested). I'm going to refine the design slightly but the results are exactly as expected. Full power braking is available without bottoming out the levers and the brakes engage after a reasonable amount of lever travel. I feel it is slightly too much still (personal preference) hence why I'm going to make a further refinement.
The HY/RD calipers are not that light though, weighing in at 234 grams for the front with flat mount adapter and about the same for the rear when you include the 32mm long mounting bolts. But unlike some other options, it is possible to run a 140mm rear rotor offsetting some of the weight.