Coffee78

Hello all... Im new to trials and this forum for that matter' Sorry if iv posted this in the wrong place... "Anyway" a little help would not go a miss please.. Iv just got an Onza hitman bike with the intention of putting a hydraulic rim brake on the rear wheel but to my dispare there only made for v brakes so i was wondering if there way a converter on the market or some other way i could fit hydraulic's too it... Thanx all.... Hope to hear some reply's soon