Wilwood 260-8419 Adjustable Proportioning Valve Knob
   Wilwood #260-8419 Brake Proportioning Valve, Knob Adjustment, 1/8 in. NPT, Single Inlet/Outlet, Aluminum, Natural, Each.  W06-2608419   Description:Wilwood brake proportioning valves are adjustable between 100 and 1,000 psi with a twist of a knob or the flip of a lever, and can reduce pressure up to 57 percent. They let you adjust brake bias quickly and easily to compensate for changing track conditions, or for big and little tire combinations. Wilwood machines each proportioning valve from aluminum and gives it a durable natural finish.