Features 1、Powerful Function: Designed to ensure that the load ratio of the front and rear wheels is appropriate when driving, and that the rear wheels do not lock up during emergency braking. 2、Pressure Regulation: This adjustable proportional valve is installed in the brake line to regulate pressure in the brake system, so as to prevent brake locking or engagement too soon. 3、Essential Part: The valve kit is a must have tool for all racing cars to enhance brake control and greatly aid steering, widely suitable for most cars and professional motorsport. 4、Adjustment Range: The valve comes with large knurled knob to adjust to your specifications with pressure range of 150PSI‑1200PSI, perfectly suitable for motorsport use. 5、Accurate Connector: The connector is precisely produced with size of 3/8‑24NPT 1/8‑27NPT for secure connection, stable performance, strong reliability and durability. Specifications: Item Type: Adjustable Brake Proportioning Valve Material: Metal Replacement Part Number: 260-8419 Residual Valve Includes: 2lb, 10lb residual valve Connector Size: 3/8-24NPT, 1/8-27NPT Application: Universal Package List 1 x Adjustable Brake Proportioning Valve 2 x Residual Valve