Unfortunately You ... have drop bars
Magura's Hydraulic rim brakes have 2 slave pistons pushing on the rim from both sides,
mounted on V/cantilever brake posts .. typically , with a straight 22.2 bar lever
maybe you can use Shimano Hydraulic road bike levers * also using mineral oil is
TRP Hylex RS
a non brifter road lever... master cylinder & fluid expansion chamber for disc brakes..
I've been using the Hydrostops on my trekking bar bike for a decade , now, with no problems..
* this was suggested for their single piston skinny tire time trial/ triathlon bike brake, in another topic thread..
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