Proportional brake valve adjustable support, brake bias adjuster racing lever type for car brake lever Features: Title Brake lever lever type adjustable PROP valve in car Application: Pressure range 150PSI - 1200PSI suitable for use in motor sportsIncreases control while brakingMakes turning while braking much easierA must for all racing cars, drifting, rally and track day cars Description: Brake bias valve with reduction range from 0-60%. Allows front to rear brake adjustment for single master cylinder applications. It is used and supplied to professional racing drivers, racing teams and most racing car series around the world, including Pro-Drift, BDC, BTCC, 750 MC etc. Fully regulates brake pressure from front to rear by placing the valve in line with rear brakes. More pressure is then applied forward giving significantly better overall braking performance. Inlet and outlet ports are 1/8NPT Quantity: 1 pc. Same as picture. Professional installer is highly recommended (no instructions included) **important** Image for illustration purposes only. All items are brand new unless otherwise stated in the listing. We sell DIY (do it yourself) items with a few exceptions. We are not responsible for teaching you how to install. Professional installation is recommended.