bias valve-screw in to reduce fuild to front (or back) and visa versa-depending how you plumb it in-put all bias on the back to lock up rear wheels eliminating handbrake-SO YOU CAN USE BOTH HANDS TO STEER GREAT ON STAGES OR AUTO TEST-ETC.

(((((NOTE DANGER!!! )))))ON ROAD CAR YOU CAN LOOSE CONTROL AND CAUSE A BIG OFF IF YOU DONT KNOW WHAT YOUR DOING