wilwood valve, proportioning, compact-assembly knob type, m10x1 bf, in/ out,

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.