looked at the new Magura RT6 brake , it uses Regular D-A type brake pads , and thru bike24
there is a mix of the HS33 lever/ master and the RT6 aero caliper..

running 349-32 Kojacks I'd expect a good fit.. The hydraulic rim brake feels like butter in smooth actuation and modulation ..

even with a circuitous routing
(like step thru frames to seat stay brace mounted sidepulls, with bottom push housing that inevitably fills with water and has the cable seized in rust )

http://www.bike24.com/1.php?content=...0,321;mid=38/F
http://www.bike24.com/1.php?product=...0,321;mid=38/R