Tilton screw-type proportioning valves enable adjustable brake line pressure reduction to a particular wheel or wheels. They can also be used effectively with single or dual master cylinder systems, providing better front-to-rear brake balance under both light and heavy braking. Tilton’s screw-type proportioning valve allows for fine adjustments for brake pressure reduction: Knurled adjustment knob for sure grip. Fine adjustment set at any point for max control. Precision-machined billet aluminum body.Metric 10mm inlet ports. We can also make FULL in-car brake line kits to suit. We manufacture brake line kits in-house for TEGIWA Civic Cup, part of 750MC.