Hi fellows, new here and first post ever. I'm working on my first motor bike build ever. A flying horse upgraded BB motor and a few other goodies. Any-who, I've been working on ATV's, for my own use, adding lights, changing brakes, replacing bearings, complete engine rebuilds ect. for 30 years. Mainly for myself and my kids, we tear up too much to pay someone 80$ an hour fix for us. That being said, I have converted a few smaller ATV's to hydraulic disk brakes. You can do what you are proposing, you do need a splitter box or Y of some type. In my experience a splitter that is more like a small cube works better than trying to "Y" the fluid, the trick is to force the fluid to a certain percentage to front and to rear. This can be done a few ways, one is hose length, if one hose is 2' and the other is 4' (past your distribution box) the shorter will get more pressure, another is to put some type of restriction in place on one hose or the other to make the flow more restricted to one hose vs the other, this can be as simple as an adjustment screw inline on one or both of the tubes, kind of like a valve in a water line. You also need a master cylinder beefy enough to push the fluid to both brakes but, sure that's not much issue with no more rolling weight than a bicycle. Does any of this help at all?
