Once again I learn something here about something I have & have thought of changeing . I too have the hyd.Magura rim brakes on one of my tandems . Question did your brakes cause you grief? Mine have been flawless for 8 yrs now , no adjustments what so ever. They have a large distance of travel
I can't bring myself to change them,if a ain't broke
& you guys cost me money as I just ordered a FD 443 for my flat bar

Thanks & Cheers